10 wimpiest muscle cars ever
None of those cars were muscle cars period because they don't fit the definition of a muscle car. A muscle car is a mid size car with a large v8 (i didn't say big block because Pontiac, Buick and Olds only had one block for all displacements from the low 300's to 455). Mustangs, Camaros, Firebirds, Barracudas were never considered muscle cars, they were referred to as Pony Cars.
Darts, Novas Falcons, etc were never considered muscle cars either even though there were flavors that would easily out perform the classic muscle car.
Impalas, Furys, Galaxys weren't muscle cars either even though the largest engines from the manufacturers were available in them.