Our feature 1969 Pontiac Bonneville is one of 5,438 convertibles built for the year. ... Power comes from the 428 cubic-inch V8 backed by a three-speed automatic transmission.

Pontiac's 428 V8 engine was a big upgrade in the 1960s, ... 1967-1969 Pontiac Bonneville. The Bonneville, Pontiac's flagship full-size offering, was a prime recipient of the 428 V8 engine.

1969 Pontiac Bonneville Convertible Is a Real Time Capsule, Rocks Super-Low Mileage. Published: 7 Jan 2022, 23:31 UTC • By: Bogdan Popa. 21 photos. Photo: Vintage Car Collector.

Pontiac's 428 V8 engine was a big upgrade in the 1960s, ... 1967-1969 Pontiac Bonneville. Blinow61/Getty Images. The Bonneville, Pontiac's flagship full-size offering, ...