Pontiac Trans Am 20th Anniversary Model
In 1989, Pontiac celebrated the 20th anniversary of its favorite muscle car, the Trans Am. They decided to introduce a limited run of 1,500 vehicles to commemorate the occasion. But, they wanted their anniversary edition to be unique and not just another decal and paint job. So Pontiac installed Buick’s 3.8-liter turbo V6 from GNX to create the fastest Trans Am of the decade (via Top Speed).
It turned out to be an extremely rare and expensive one. The white commemorative edition could accelerate 0.1 seconds faster from 0 to 60 mph than the GNX at 4.6 seconds. The reason was simple. It had a better weight distribution and gearing from a Pontiac gearbox. Today, those cars are rare and highly-prized collector’s pieces.