Pontiac GTO Convertible

The 1970 Pontiac GTO carried on the 1968 long hood, short deck design for the third year. It retained the flexible Endura nose, which was attractively reshaped to integrate more cleanly with the rest of the car, and 1970 bodies were all new from the windshield forward. Inside, the seats gained a breathable weave pattern in the center, and the console and dash panel were covered with a wood appliqué.

Air scoops in the hood could be made functional with the Ram Air III or Ram Air IV cold-air engine packages, and there was a dizzying list of nine optional engine and transmission combinations available this year. The base engine was the 400/350 V8, the Ram Air III delivered 366 hp and the Ram Air IV offered 470 hp. In all, Pontiac built 40,149 GTOs in 1970, of which 32,737 were hardtops and only 3,615 were convertibles, not including “Judge” production figures.

A four-link rear sway bar was added to the rear suspension from 1970, and coil springs were computer-selected to improve handling. Speed-sensitive power steering varied the degree of power assist, to ease parking effort but maintain high-speed road feel.

This car was auctioned off by RM Auctions in June of 2010 at the Town and Country Resort & Convention Center, San Diego, California and in August of 2010 at the Portola Hotel & Spa and Monterey Conference Center, Monterey, California.

366 hp, 400 cu. in. Ram Air III V8 engine, four-barrel carburetor, Turbo Hydra-Matic transmission, independent front suspension, live rear axle with semi-elliptic leaf springs, four-wheel drum brakes. Wheelbase: 112".

Source: RM Auctions
Photo Credit: Copyright Darin Schnabel

Pontiac GTO Convertible