Our family car for a while when I was a child was a '53 BelAir six/Powerglide...very leisurely, to be kind..
You mean they're lying to us from 7:14 to 9:13?
From memory, '53 PG rated 115 HP, '53 std trans, rated 107 HP. The hottest Chevy in town couldn't break 16 secs quarter mile with a friend manning the clock.
The new 6 bangers and ohv V8's were killing the Ford flathead V8 that maxed out at 110 HP.
Dad had a friend in the 1970's who claimed those late '50's hot cars ran 12 second quarter miles.