1966 Pontiac GTO 

It must be very difficuly for car designers NOT to add weight to a car. All of the GM mid-size cars got a make-over for ‘66 and they all got just a little larger. Detroit was realizing that there was a market for mid-size cars. What a better way to sell a mid-size car than to say it’s now a little bigger?

It must have worked because Pontiac had its best year with the ‘66 GTO selling 96,946 cars. It seemed that there were GTOs everywhere!

The slightly underrated 389-cid 360 hp engine had more than enough torque to handle the weight gain and still be a good street machine. The 400 engine wouldn’t become available in the GTO until ‘67.