It's all about perspective. Compared to the cars of the day they were quick. It's like comparing a ww1 bi- plane to an f-16. Time marches on. Today's thrill is tomorrow's norm.
A ‘70 Cheville SS will turn my head faster than just about any other car.
Yesterday, I saw a guy run a Ferrari (296, I think) through the car wash. I would never run a 70 Chevelle through a car wash.