[oldskool]

In Pontiac circles, '66 is known as the last year of the 389, the last year of the 421, & the last year of Tri-Power. I also think of it as the last year a GTO was limited to a 2-speed, if auto trans equipped.

The '66 Tri-Power is said to be the best of any year. Therefore, the '66 Tri-Power GTO's ran quite well.

The Knafel '66 Tri-Power GTO car, which I call the "Trophy Car", MAY have been the winningest '66 GTO ever. Don't know. Knafel actually ran at least 2 of these cars that looked similar. One had a lighter colored bottom, with a darker colored top, the other with a darker bottom & lighter top. Don't know if they ran identical set-ups, or not. They did haul 'em on the same rig, as a couple of the pics below depict.

Royal Pontiac also fielded at least one of the '66 Goats. Once again, I assume that many Pontiac dealers, across the country, also fielded, or at least sponsored a '66 GTO.

Don't know when the last competitive '66 Tri-Power GTO was active. Anybody know ?