For the 1966 model year, Buick redesigned the Riviera. Gone was the car’s angular bodywork, replaced by bodywork that was sleek, graceful and elegant.
For 1971, Buick would again redo the Riviera, this time with dramatic boat-tail styling. But the sleek coupe wouldn’t give way without something special for its 1970 finale.
The seller is in Phoenix, Arizona, and reports that the previous owners had the car in Oklahoma or Texas. It was one of those previous owners that had the car repainted in its stunning two-tone motif.
“Otherwise the car is original including the factory vinyl top,” the seller reports.
“I was able to speak with two prior owners who collectively have knowledge of the entire life of the car. Both reported the car has been well cared for its entire life and always garaged. It is essentially an original survivor in astonishing condition inside and out, evident in the photos and when you drive and see it in person.”
The seller adds that the car has “the rare optional bucket seats, center console shifter, and factory three-note jazz chord horn.
“The 1970 Riviera was a one-year-only body style with a brand-new grille design, fender skirts, and swooping side spears,” the seller notes. “First year for the monster 455 motor, 370 hp, 510 torque, 10:1 compression. These 4,360 lb. beasts would do zero to 60 in 7.9 seconds, a quarter mile in 15.1 seconds, and had a top speed of 132 mph. The stock carburetor was a 4 bbl Rochester Quadrajet. Transmission was the Turbo-Hyromatic THM 400.”
The seller adds that of 37,337 Rivs, only 3,505 were Gran Sport versions with posi-traction, self-adjusting power brakes with finned aluminum drums, and “AccuDrive” suspension, and other features.
“From researching many Buick Forum sites and studying the original 1970 Buick specs literature, all 1970 GS Rivieras were essentially Stage 1 ‘High Performance’ motors, though not designated with Stage 1 emblems. (Stage 1 badging was not installed on GS Rivieras until 1973). As you can see in the photos, my Riviera GS has Stage 1 emblems added to the grille and air cleaner, done by a prior owner. No harm no foul, they look cool and actually are descriptively correct.”
The seller reports that in recent years the car has a new air-conditioning compressor, electronic ignition, drive shaft, alternator, window motor, weather stripping and other work.
“Tilt steering, PS, PB, PW, PDL, and Power driver’s seat all functional.”