Car & Driver clocked the 2015 Scat Pack A8 in 12.6 sec. @ 114 mph. (and the M6 in 12.9 sec. @ 113 mph.). This is faster than any of the true mass-produced muscle cars from the 60s and early 70s. (Note- Only two cars were faster- the Corvette ZL1 and Shelby Cobra 427 SC which are not really muscle cars. The Yenko Camaro 427 is tied at 12.59 sec. @ 108 mph. but it has a much slower trap speed). The fastest true muscle car, and the only one in the 12s, was the ‘69 Road Runner 440 Six-Pack which did 12.91 sec. @ 111.8 mph. Over the past 15+ years, we have truly lived through the greatest muscle car era!
There is no specific quantity that defines mass production. I used this term to differentiate cars that are produced in quantities, as opposed to limited production cars (e.g., (e.g., Dodge Ram SRT-10, Jaguar XE SV Project 8, Porsche 911 Speedster and Nissan GT-R50) where the production run is restricted to a specific number.
Isn't this silver R/T Challenger with shaker option faster in every way over the Road Runner 440 6pack?
A well-tuned 440 Six-Pack Road Runner could beat a 5.7 Challenger. The shaker is just for looks and does nothing for performance. A 5.7 would run around 13.7 sec. @103 mph.
I had a 1965 Belvedere with a 1970 440 Magnum--Edelbrock high rise with a 850 dual feed Holly, & a 4:10 Dan Rear. Never dyno tuned--it's top was 13.2 sec at 106 mph 1/4 mile. There a big difference in tranny's 8 speed auto versus 3 or 4 spd trannys. My 2021 Scat Pack ran 12.8 sec at 106mph with 36 lbs air pressure in rear tires. It wasn't a planned run
