The carbureted 389ci V8 was rebuilt and features a black air-cleaner assembly with a snorkel.
Pontiac built 16,229 convertible versions of the Bonneville for the 1966 model year.
This car was delivered new in Montero Red (R) and was refinished in 2018.
Features include a black soft top, rear wheel skirts, chrome-finished bumpers, bright rocker-panel trim, and Bonneville badging across the front fenders and doors on either side of the car.
A multi-color two-spoke steering wheel sits ahead of instrumentation that includes a horizontal 120-mph speedometer, a clock, an ammeter, and a fuel-level gauge.
The five-digit odometer shows 54k miles, true mileage is unknown.