Initially a high-performance full-size car, the Grand Prix morphed into a luxurious mid-size vehicle in 1969, when Pontiac launched the third-generation model ... with the SJ package this Poncho ...

The year was 1969 and the world was ... for his luxury/performance model, the Grand Prix. It would combine throw-back styling cues of the Duesenberg SJ with the thoroughly modern long hood/short ...

Like 1969 to 1970, the '72 Grand Prix saw little ... but a new option was limited to the Grand Prix Model SJ only. As we learned in the article "Unitized Ignition, Anyone?" that appeared in ...

The 1969 And 1970 Grand Prix Featured Monstrous V8s The muscle ... though. That year's SJ model came with the 455 cubic inch V8, tuned to make 325 horsepower and 455 pound-feet of torque.

The Grand Prix here is equipped with the 350-horsepower, 400-cubic-inch V-8 and a three-speed automatic. A manual transmission was also available. Another change for the 1969 model year was in the ...