| 
					
					Convertibles have always been desirable. Production cars 
					optioned with the biggest engines were always rare. Combine 
					those two factors and it is sufficient to conclude that the 
					big-block drop-tops are the pinnacle of collectability, as 
					they are both desirable and rare. 
					Collectors agree that the minimum 
					five (6) criteria for gauging rarity to include: year, make, model body 
					style, engine and transmission. Paint color, trim 
					and other options are also important when building a world-class collection, 
					however, they are not baseline criteria. 
					This is a list of 
					the rarest and most desirable convertible muscle 
					cars ever built on an assembly line, meeting all federal 
					safety standards and having the intention of 
					being sold to the public.  
					The Mopar 'Hemi 
					cars all had dual 4bbl (8v), however, only one other 
					brand convertible received dual quads atop its 7-liter big 
					block..... the 1967 Shelby G.T. 500 Convertible. 
					
						
							| 
							Year | 
							
							
							Manufacturer | 
							
							Model | 
							
							V | 
							
							Engine | 
							
							Carb | 
							
							4-spd | 
							
							Auto | 
							
							CA | 
							
							Exp. | 
							
							Total | 
						 
						
							| 
							1968 | 
							
							
							Ford-Shelby | 
							
							G.T. 
							500 KR Convertible | 
							
							  | 
							
							428 
							CJ Ram Air | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							518 | 
						 
						
							| 
							1968 | 
							
							
							Ford-Shelby | 
							
							G.T. 
							500 Convertible | 
							
							  | 
							
							428 
							Interceptor | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							402 | 
						 
						
							| 
							1967 | 
							
							
							Ford | 
							
							
							Mustang GTA Deluxe Conv. | 
							
							S | 
							
							390 
							FE | 
							
							4v | 
							  | 
							
							314 | 
							  | 
							  | 
							
							314 | 
						 
						
							| 
							1970 | 
							
							
							Oldsmobile | 
							
							
							
							442 
							W30 Convertible | 
							
							  | 
							
							455 | 
							
							4v | 
							
							96 | 
							
							168 | 
							
							- | 
							
							- | 
							
							264 | 
						 
						
							| 
							1970 | 
							
							
							Plymouth | 
							
							
							
							'Cuda 
							Convertible | 
							
							H | 
							
							340 | 
							
							4v | 
							
							88 | 
							
							155 | 
							  | 
							  | 
							
							262 | 
						 
						
							| 
							1969 | 
							
							Shelby | 
							
							G.T. 
							500 Convertible | 
							
							  | 
							
							428 CJ | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							245 | 
						 
						
							| 
							1970 | 
							
							Buick | 
							
							GSX 
							Stage 1 Convertible | 
							
							  | 
							
							455 | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							232 | 
						 
						
							| 
							1970 | 
							
							
							Plymouth | 
							
							'Cuda 
							Convertible | 
							
							N | 
							
							383 | 
							
							4v | 
							
							63 | 
							
							137 | 
							  | 
							  | 
							
							209 | 
						 
						
							| 
							1971 | 
							
							Dodge | 
							
							
							Challenger Convertible | 
							
							N | 
							
							383 | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							167 | 
						 
						
							| 
							1970 | 
							
							Dodge | 
							
							
							Challenger R/T Conv. | 
							
							U | 
							
							440 | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							163 | 
						 
						
							| 
							1971 | 
							
							
							Plymouth | 
							
							'Cuda 
							Convertible | 
							
							H | 
							
							340 | 
							
							4v | 
							
							30 | 
							
							102 | 
							  | 
							  | 
							
							140 | 
						 
						
							| 
							1971 | 
							
							
							Plymouth | 
							
							'Cuda 
							Convertible | 
							
							N | 
							
							383 | 
							
							4v | 
							
							33 | 
							
							87 | 
							  | 
							  | 
							
							128 | 
						 
						
							| 
							1969 | 
							
							Mercury | 
							
							
							
							Cougar 
							XR7 Convertible | 
							
							R | 
							
							428 CJ 
							Ram Air | 
							
							4v | 
							
							31 | 
							
							96 | 
							
							- | 
							- | 
							
							127 | 
						 
						
							| 
							1969 | 
							
							Ford | 
							
							
							Mustang Convertible | 
							
							  | 
							
							428 
							CJ | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							122 | 
						 
						
							| 
							1970 | 
							
							Dodge | 
							
							
							Challenger R/T Convertible | 
							
							V | 
							
							440 | 
							
							6v | 
							  | 
							  | 
							  | 
							  | 
							
							99 | 
						 
						
							| 
							1970 | 
							
							Shelby | 
							
							G.T. 
							500 Convertible | 
							
							  | 
							
							428 CJ | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							90 | 
						 
						
							| 
							1970 | 
							
							Dodge | 
							
							
							Challenger Convertible | 
							
							N | 
							
							383 | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							69 | 
						 
						
							| 
							1969 | 
							
							
							Pontiac | 
							
							
							
							GTO 
							Convertible | 
							
							  | 
							
							
							Ram Air IV | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							50 | 
						 
						
							| 
							1970 | 
							
							Ford | 
							
							
							Mustang Convertible | 
							
							  | 
							
							428 
							CJ | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							47 | 
						 
						
							| 
							1969 | 
							
							
							Mercury | 
							
							Cougar XR-7 Convertible | 
							
							Q | 
							
							428 
							CJ | 
							
							4v | 
							
							7 | 
							
							39 | 
							
							- | 
							
							- | 
							
							46 | 
						 
						
							| 
							1970 | 
							
							
							Plymouth | 
							
							
							
							'Cuda 
							Convertible | 
							
							V | 
							
							440 | 
							
							6v | 
							
							17 | 
							
							12 | 
							
							15 | 
							  | 
							
							44 | 
						 
						
							| 
							1970 | 
							
							
							Mercury | 
							
							
							
							Cougar XR-7 Convertible | 
							
							Q | 
							
							428 
							CJ Ram Air | 
							
							4v | 
							
							7 | 
							
							33 | 
							
							- | 
							
							- | 
							
							37 | 
						 
						
							| 
							1968 | 
							
							
							Plymouth | 
							
							GTX 
							Convertible | 
							
							J | 
							
							426 
							'Hemi | 
							
							8v | 
							  | 
							  | 
							  | 
							  | 
							
							36 | 
						 
						
							| 
							1970 | 
							
							
							Plymouth | 
							
							
							
							Road 
							Runner Convertible | 
							
							V | 
							
							440 | 
							
							6v | 
							
							20 | 
							
							14 | 
							
							3 | 
							
							? | 
							
							37 | 
						 
						
							| 
							1970 | 
							
							
							Plymouth | 
							
							'Cuda 
							Convertible | 
							
							U | 
							
							440 | 
							
							4v | 
							
							6 | 
							
							28 | 
							
							? | 
							
							? | 
							
							34 | 
						 
						
							| 
							1968 | 
							
							Ford | 
							
							
							Mustang Convertible | 
							
							  | 
							
							428 
							CJ | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							34 | 
						 
						
							| 
							1971 | 
							
							Ford | 
							
							
							Mustang Convertible | 
							
							  | 
							
							429 CJ | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							32 | 
						 
						
							| 
							1970 | 
							
							
							Mercury | 
							
							
							Cougar XR7 Convertible | 
							
							Q | 
							
							428 
							CJ/SCJ | 
							
							4v | 
							
							13 | 
							
							16 | 
							
							- | 
							
							- | 
							
							29 | 
						 
						
							| 
							1966 | 
							
							
							Plymouth | 
							
							
							Satellite Convertible | 
							
							H | 
							
							426 
							'Hemi | 
							
							8v | 
							
							- | 
							
							- | 
							
							- | 
							
							- | 
							
							27 | 
						 
						
							| 
							1969 | 
							
							
							Mercury | 
							
							
							Cougar Convertible | 
							
							R | 
							
							428 
							CJ | 
							
							4v | 
							
							7 | 
							
							16 | 
							
							- | 
							
							- | 
							
							23 | 
						 
						
							| 
							1966 | 
							
							
							Plymouth | 
							
							
							Coronet 500 Convertible | 
							
							H | 
							
							426 
							'Hemi | 
							
							8v | 
							
							12 | 
							
							9 | 
							
							- | 
							
							- | 
							
							21 | 
						 
						
							| 
							1970 | 
							
							
							Chevrolet | 
							
							
							Chevelle Convertible | 
							
							- | 
							
							454 
							LS6 | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							*40 | 
						 
						
							| 
							1970 | 
							
							
							Pontiac | 
							
							GTO 
							Convertible | 
							
							- | 
							
							400 Ram 
							Air IV | 
							
							4v | 
							
							24 | 
							  | 
							  | 
							  | 
							
							37 | 
						 
						
							| 
							1970 | 
							
							
							Plymouth | 
							
							
							
							'Cuda 
							Convertible | 
							
							R | 
							
							426 
							'Hemi | 
							
							8v | 
							
							5 | 
							
							9 | 
							
							3 | 
							
							1 | 
							
							18 | 
						 
						
							| 
							1970 | 
							
							
							Pontiac | 
							
							
							
							GTO 
							'Judge' Convertible | 
							
							- | 
							
							400 Ram 
							Air IV | 
							
							4v | 
							
							*6 | 
							
							*6 | 
							
							- | 
							
							- | 
							
							*12 | 
						 
						
							| 
							1971 | 
							
							
							Plymouth | 
							
							'Cuda 
							Convertible | 
							
							V | 
							
							440 | 
							
							6v | 
							
							5 | 
							
							12 | 
							
							0 | 
							
							1 | 
							
							18 | 
						 
						
							| 
							1971 | 
							
							
							Pontiac | 
							
							
							
							GTO 
							'Judge' Convertible | 
							
							- | 
							
							455 
							Ram Air | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							17 | 
						 
						
							| 
							1969 | 
							
							
							Pontiac | 
							
							
							Firebird Convertible | 
							
							- | 
							
							400 Ram 
							Air IV | 
							
							4v | 
							
							10 | 
							
							7 | 
							- | 
							- | 
							
							17 | 
						 
						
							| 
							1967 | 
							
							
							Plymouth | 
							
							GTX 
							Convertible | 
							
							J | 
							
							426 
							'Hemi | 
							
							8v | 
							  | 
							  | 
							  | 
							  | 
							
							17 | 
						 
						
							| 
							1969 | 
							
							
							Plymouth | 
							
							GTX 
							Convertible | 
							
							J | 
							
							426 
							'Hemi | 
							
							8v | 
							
							5 | 
							
							6 | 
							
							5 | 
							
							- | 
							
							16 | 
						 
						
							| 
							1969 | 
							
							Dodge | 
							
							
							Coronet R/T Convertible | 
							
							J | 
							
							426 
							'Hemi | 
							
							8v | 
							
							4 | 
							
							6 | 
							
							4 | 
							
							4 | 
							
							14 | 
						 
						
							| 
							1969 | 
							
							
							Mercury | 
							
							
							Cougar Convertible | 
							
							Q | 
							
							428 
							CJ | 
							
							4v | 
							
							2 | 
							
							11 | 
							
							- | 
							
							- | 
							
							13 | 
						 
						
							| 
							1969 | 
							
							
							Plymouth | 
							
							Road 
							Runner Convertible | 
							
							J | 
							
							426 
							'Hemi | 
							
							8v | 
							
							4 | 
							
							6 | 
							
							2 | 
							
							2 | 
							
							12 | 
						 
						
							| 
							1970 | 
							
							Dodge | 
							
							
							
							Challenger Convertible | 
							
							R | 
							
							426 
							'Hemi | 
							
							8v | 
							
							5 | 
							
							4 | 
							
							3 | 
							
							3 | 
							
							12 | 
						 
						
							| 
							1971 | 
							
							
							Plymouth | 
							
							
							
							'Cuda 
							Convertible | 
							
							R | 
							
							426 
							'Hemi | 
							
							8v | 
							
							2 | 
							
							5 | 
							
							2 | 
							
							3 | 
							
							12 | 
						 
						
							| 
							1972 | 
							
							Ford | 
							
							
							Mustang Convertible | 
							
							R | 
							
							351 HO | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							11 | 
						 
						
							| 
							1969 | 
							
							
							Chevrolet | 
							
							
							
							Chevelle Convertible | 
							
							- | 
							
							
							396/375 L78 w/L89 | 
							
							4v | 
							
							*2 | 
							
							  | 
							
							  | 
							
							- | 
							
							  | 
						 
						
							| 
							1969 | 
							
							
							Chevrolet | 
							
							
							
							Camaro Convertible 
							RS | 
							
							- | 
							
							
							396/375 L78 w/L89 | 
							
							4v | 
							
							*1 | 
							
							  | 
							
							  | 
							
							- | 
							
							  | 
						 
						
							| 
							1966 | 
							
							
							Plymouth | 
							
							
							Belvedere II Convertible | 
							
							H | 
							
							426 
							'Hemi | 
							
							8v | 
							
							4 | 
							
							6 | 
							
							- | 
							
							- | 
							
							10 | 
						 
						
							| 
							1971 | 
							
							Ford | 
							
							
							Mustang Convertible | 
							
							C | 
							
							429 CJ | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							10 | 
						 
						
							| 
							1968 | 
							
							Dodge | 
							
							
							Coronet Convertible | 
							
							J | 
							
							426 
							'Hemi | 
							
							8v | 
							  | 
							  | 
							  | 
							  | 
							
							9 | 
						 
						
							| 
							1967 | 
							
							
							Pontiac | 
							
							
							Firebird Convertible | 
							
							- | 
							
							400 
							Ram Air | 
							
							4v | 
							
							6 | 
							
							2 | 
							
							- | 
							
							- | 
							
							8 | 
						 
						
							| 
							1968 | 
							
							
							Pontiac | 
							
							
							Firebird Convertible | 
							
							- | 
							
							400 
							Ram Air II | 
							
							4v | 
							
							7 | 
							
							1 | 
							
							- | 
							
							- | 
							
							8 | 
						 
						
							| 
							1969 | 
							
							
							Pontiac | 
							
							
							Firebird Trans 
							Am Conv. | 
							
							- | 
							
							400 
							Ram Air | 
							
							4v | 
							
							4 | 
							
							4 | 
							
							- | 
							
							- | 
							
							8 | 
						 
						
							| 
							1971 | 
							
							Ford | 
							
							
							Mustang Convertible | 
							
							- | 
							
							429 
							SCJ | 
							
							4v | 
							  | 
							  | 
							  | 
							  | 
							
							8 | 
						 
						
							| 
							1970 | 
							
							
							Mercury | 
							
							
							Cougar Convertible | 
							
							Q | 
							
							428 
							CJ Ram Air | 
							
							4v | 
							
							3 | 
							
							4 | 
							
							- | 
							
							- | 
							
							7 | 
						 
						
							| 
							1966 | 
							
							Dodge | 
							
							
							Coronet 500 Convertible | 
							
							H | 
							
							426 
							'Hemi | 
							
							8v | 
							
							3 | 
							
							3 | 
							
							- | 
							
							- | 
							
							6 | 
						 
						
							| 
							1969 | 
							
							
							Pontiac | 
							
							GTO 
							'Judge' Convertible | 
							
							- | 
							
							400 Ram 
							Air IV | 
							
							4v | 
							  | 
							  | 
							
							- | 
							
							- | 
							
							5 | 
						 
						
							| 
							1966 | 
							
							
							Shelby Amer. | 
							
							
							
							G.T. 
							350 Convertible | 
							
							K | 
							
							302 | 
							
							4v | 
							
							2 | 
							
							2 | 
							
							- | 
							
							- | 
							
							4 | 
						 
						
							| 
							1967 | 
							
							Dodge | 
							
							
							Coronet R/T Convertible | 
							
							J | 
							
							426 
							'Hemi | 
							
							8v | 
							
							2 | 
							
							1 | 
							
							1 | 
							
							- | 
							
							4 | 
						 
						
							| 
							1970 | 
							
							
							Plymouth | 
							
							Road 
							Runner Convertible | 
							
							R | 
							
							426 
							'Hemi | 
							
							8v | 
							
							1 | 
							
							2 | 
							
							1 | 
							
							- | 
							
							4 | 
						 
						
							| 
							1970 | 
							
							Pontiac | 
							
							GTO Judge Convertible | 
							
							- | 
							
							455 HO | 
							
							4v | 
							
							0 | 
							
							3 | 
							
							- | 
							
							- | 
							
							3 | 
						 
						
							| 
							1969 | 
							
							
							Oldsmobile | 
							
							
							Hurst-Olds Convertible | 
							
							- | 
							
							455 | 
							
							4v | 
							
							3 | 
							
							0 | 
							
							- | 
							
							- | 
							
							3 | 
						 
						
							| 
							1970 | 
							
							Dodge | 
							
							
							Coronet R/T Convertible | 
							
							R | 
							
							426 
							'Hemi | 
							
							8v | 
							
							1 | 
							
							1 | 
							
							1 | 
							
							- | 
							
							3 | 
						 
						
							| 
							1967 | 
							
							
							Plymouth | 
							
							
							Satellite Convertible | 
							
							J | 
							
							426 
							'Hemi | 
							
							8v | 
							
							2 | 
							
							0 | 
							
							- | 
							
							- | 
							
							2 | 
						 
						
							| 
							1968 | 
							
							
							Chevrolet | 
							
							
							Camaro Z/28 Convertible | 
							
							- | 
							
							302 
							Cross-Ram | 
							
							8v | 
							
							1 | 
							
							0 | 
							
							- | 
							
							- | 
							
							1 | 
						 
						
							| 
							1967 | 
							
							Shelby 
							Amer. | 
							
							G.T. 
							500 Convertible | 
							
							Q | 
							
							428 
							Interceptor | 
							
							8v | 
							
							0 | 
							
							1 | 
							
							- | 
							
							- | 
							
							1 | 
						 
					 
					Notes: 
					* No factory 
					paperwork for Chevrolet and some others are estimated based 
					on what's known to still exist. 
		
					 |