If you replaced 'AMC' with 'Checker,' I might have agreed with you. Checker automobiles, made in Michigan, used Chevrolet engines. While AMC had a 327 it was their own proprietary engine.
As a teenager, I got to drive my older brother's vintage XK120's (he had two) and while they were ~15+ years old, they would easily turn 115 mph before my brother decided that was fast-enough.
The XK120 was a sensation in the post-WWII period, and Jaguar sent an early model to Belgium, where with a smaller windshield and aero aids, it turned 141 MPH, just-after Elizabeth II became Queen (1952 for her, 1953 for the Jaguar). Norman Dewis was the driver, he set multiple records for Jaguar and was highly-respected among racers over decades. He also helped launch the XK-E. His life story would make a great movie.
BRITAIN’S GREATEST TEST DRIVER, NORMAN DEWIS OBE, PASSES AWAY | Jaguar Media Newsroom
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A year later (1953) a 1952 Jaguar with prep and a bubble canopy for streamlining, not unlike Ed 'Big Daddy' Roth installed on his famous Mysterion showcar, on the same Belgium roadway as the 1949 record run, went 172 MPH. At that time, Chevrolet was still running flathead sixes.
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Ed Roth doing bodywork on the Mysterion:
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