Aug. 29, 1961 - Two cars with a distinctive sports look were featured as Pontiac offered its 1962 preview today at the G.M. Technical Center in Warren, Mich. They were a small convertible in the luxury compact Tempest line and a racy, low-slung, bucket-seat coupé in the full-size Pontiac. The latter, called the Grand Prix, has a 303-horsepower cast-iron V-8 engine. As a counterpart to the new Grand Prix model, Pontiac has a more modest bucket-seat sports coupé in the compact Tempest line called Le Mans.