Pontiac Bonneville (7th generation)
The downsized flagship that preserved Pontiac's big-block character.
- Power
- 180 bhp
- 0–60 mph
- 11.2 s
- Top speed
- 115 mph
- Est. value
- $5k–$20k
About the Pontiac Bonneville
The 1978 Bonneville represents the second year of Pontiac's successful downsizing of its full-size B-body platform. Despite being smaller and lighter than its predecessors, it retained the brand's signature luxury and the availability of the 400 cubic-inch (6.6-litre) V8, which provided the effortless low-end torque expected of a premium American cruiser. This generation was praised for its improved handling and efficiency compared to the 'land yachts' of the early 1970s. For collectors, the 1978 model is a significant milestone as one of the final years for the traditional Pontiac-built V8 engines before corporate GM units became standard.
Pontiac Bonneville specs
The Pontiac Bonneville produces 180 bhp (134 kW) and 441 Nm (325 lb-ft) of torque. It reaches 60 mph in 11.2 seconds and has a top speed of 115 mph (185 km/h).
| Make | Pontiac |
|---|---|
| Model | Bonneville |
| Generation | Seventh Generation (7th generation) |
| Trim | 6.6 V8 |
| Years | 1977–1981 |
| Type | Classic |
| Body style | Coupé |
| Country | United States |
| Original price | About $6,200 when new |
| Engine | 6.6-litre V8 |
|---|---|
| Displacement | 6,555 cc (6.6 litres) |
| Induction | Naturally aspirated |
| Power | 180 bhp (134 kW) at 4,000 rpm |
| Torque | 441 Nm (325 lb-ft) |
| Redline | 4,500 rpm |
| 0–60 mph | 11.2 s |
| Top speed | 115 mph (185 km/h) |
| Transmission | 3-speed automatic |
| Drivetrain | Rear-wheel drive |
| Weight | 1,603 kg (3,534 lb) |
| Power-to-weight | 112 bhp per tonne |
Typical figures for the standard car; options, markets and model years vary. Where our specs come from
How much is a Pontiac Bonneville worth?
A typical Pontiac Bonneville is estimated to be worth $5,000 – $20,000 (about £3,700 – £15,000).
Its original price when new was about $6,200.
Values are directional estimates for a typical example, not appraisals. Condition, mileage, history and specification all change what a real car is worth. Pound figures use the exchange rate of 3 November 2026. How values are estimated
Pontiac Bonneville rarity in CarSpot
The Pontiac Bonneville is an Uncommon card in CarSpot, with a rarity score of 20 out of 100. Hot hatches and premium sporty cars. An Uncommon card is worth 20 XP.
Each model's tier starts from a 0–100 score based on its value plus its power or production numbers. Once enough players have spotted a model, how often it is spotted can move it up or down one tier. How CarSpot rarity works
Rarity is a collectible game mechanic, not an assessment of real-world scarcity or value.
Pontiac Bonneville fun facts
- The 1978 model year was part of a major sales success for Pontiac, with the Bonneville and Catalina models helping the brand reach record production numbers.
- The 6.6-litre V8 in the 1978 Bonneville was the same basic '400' engine block used in the iconic Trans Am of the same era.
- Despite being nearly 300kg lighter than the 1976 model, the 1978 Bonneville offered more interior legroom and trunk space due to smarter packaging.
