I think there may be a roller skate and a lawnmower somewhere in the ol’ woodpile here.
Muscle Car Ancestries
Motor Trend identified the following models as “muscle cars” in 1965:
1962–1965 Dodge Dart 413/426 Max Wedge/426 Hemi
1962–1965 Plymouth Fury 413/426 Max Wedge/426 Hemi
1964–1965 Ford Fairlane 427
1965 Buick Skylark GSX/GS400/GS
1965 Dodge Coronet 426-S
1965 Plymouth Belvedere 426-S
1965 Chevrolet Malibu SS
1965 Oldsmobile Cutlass 442
Road & Track identified the following models as “muscle cars” in 1965:
1964–1965 Pontiac GTO
1965–1975 Buick Riviera Gran Sport
1965–1969 Buick Skylark Gran Sport
1965–1970 Dodge Coronet 426-S
1965–1970 Plymouth Belvedere 426-S
1965 Chevrolet Malibu SS
1965–1967 Oldsmobile Cutlass 442
Car and Driver also created a list of the 10 Best muscle cars for its January 1990 issue. The magazine focused on the engines and included:
1966–1971 Plymouth/Dodge intermediates with 426 Hemi
1966–1967 Chevy II SS327
1966–1969 Chevrolet Chevelle SS396
1968–1969 Chevy II Nova SS396
1969 Ford Torino Cobra 428
1969 Plymouth Road Runner 440 Six Pack
1969 Dodge Super Bee 440 Six Pack
1970 Chevrolet Chevelle SS454
1969 Pontiac GTO
1984–1987 Buick Grand National
1970–1987 Chevrolet Monte Carlo SS
Other muscle cars include the following:
Full-size muscle models
1939-1942 Buick Century
1965–1970 Buick Wildcat
1966–1973 Buick Riviera GS & GS Stage One
1965–1974 Chevrolet Impala SS & Custom Coupe
1965–1974 Chevrolet Bel Air along with Chevrolet Biscayne and Chevrolet Caprice
1965–1971 Chrysler 300 non-letter series
1965–1973 Dodge Polara Super-Lite
1965–1974 Ford Galaxie
1966–1967 Mercury S-55
1969–1970 Mercury Marauder
1965–1966 Oldsmobile Starfire
1964–1965 Oldsmobile Jetstar I
1969–1974 Plymouth Fury GT
1966–1969 Pontiac Ventura
1964–1972 Pontiac Grand Prix SJ
Mid-size muscle models
1967–1970 AMC Rebel
1970 AMC Rebel Machine[45]
1971 AMC Matador Machine [63]
1965–1972 Buick Skylark Grand Sport & Buick GSX
1965–1973 Chevrolet Chevelle SS
1966–1974 Dodge Charger 500, R/T & SE
1968–1971 Dodge Super Bee
1969 Dodge Charger Daytona[64]
1966–1969 Ford Fairlane GT, GTA & Cobra
1968–1974 Ford Torino GT, Cobra & Talladega
1966–1972 Mercury Cyclone GT, Cobra Jet & Spoiler II
1968–1973 Mercury Montego GT & MX Broughan
1968–1972 Oldsmobile 4-4-2
1968–1972 Oldsmobile Cutlass SX, Supreme & Hurst/Olds
1967–1971 Plymouth GTX
1968–1975 Plymouth Road Runner[65][66]
1970 Plymouth Superbird
1964–1973 Pontiac GTO
1968–1970 Pontiac Tempest GT-37
1973–1975 Pontiac Grand Am
Compact muscle models
1969 AMC SC/Rambler
1971 AMC Hornet SC 360
1972–1976 AMC Gremlin V8[67]
1966–1974 Chevrolet Nova SS
1967–1976 Dodge Dart GT, GTS, Swinger & Demon
1970–1976 Plymouth Duster Gold Duster & Twister
1966–1979 Ford Falcon Sports Coupe
1970–1975 Ford Maverick Grabber
1971–1975 Mercury Comet GT
1973–1974 Oldsmobile Omega S
1973–1974 Buick Apollo GSX
1974 Pontiac GTO
1966-1969 Rambler Rogue V8
**Source here.