Some years ago (which by now is a very large number) I acquired a book titled The Sports Car, Its Design and Performance by Colin Campbell. Much of it is dated now (first published in '54, my copy is the 4th version, '78) and some of his math is a bit sloppy but it is quite informative on some things.
One of the chapters is about performance. He makes a point that, as with all things, goals change and our perspective changes along with them. He lists performance figures for various cars (unfortunately with year given for only one) which by today's standards are surprising. For example, measured 0-60mph times and top speed:
Aston Martin DBS V8 5.7sec, 155mph
Corvette Stingray (1968) 6.1sec, 146mph
Ferrari 308 GT4 2+2 6.4sec, 152mph
Maserati Bora 6.5sec, 160mph
de Tomaso Pantera 5.8sec, 155mph
Porsche 911S 7.3sec, 136mph
Lamgorghini Espada 7.8sec, 150mph
He also lists other less high-end cars such as TR7, MGB-GT V8, Morgan Plus 8, etc, and other specs such as weight, "net power" (presumably DIN as he described in an earlier paragraph). The highest power was from the Lamgorghini Espada 350bhp, followed by the Aston Martin, 345bhp estimated, and the Corvette 340 estimated.
These cars were the top-levels stuff of the day, that Corvette being at the height of the muscle car era. By today's standards they are all slow. The base Cayman's 4.9sec, 170mph beats them all. Are we spoiled or what?