Although the evolution of the automobile has slowed down quite a bit, a lot has changed in the past 40 years. Perhaps the definition of fun has changed quite a bit as well.
When it went on sale for the last time, in 1973, the short-lived Centurion was a relic of a carefree motoring past. Ever more-strangled by emissions controls and dropping compression ratios, the high-flying concept of a speedy middle Buick was on the way out, never to truly return. But there were still takers of this outsized, wind-in-the-hair, torquey-455-V8 fun time.