Sunbeam Imp
The innovative rear-engined 'Mini-fighter' with a racing heart.
- Power
- 39 bhp
- 0–60 mph
- 23.0 s
- Top speed
- 80 mph
- Est. value
- $5k–$15k
About the Sunbeam Imp
The Sunbeam Imp, a badge-engineered version of the Hillman Imp, was Rootes Group's ambitious response to the BMC Mini. It featured a revolutionary all-aluminium overhead-cam engine derived from a Coventry Climax fire-pump unit, canted at 45 degrees to maintain a low profile. Despite its clever packaging—including a top-hinged rear window that made it an early hatchback—early reliability issues and the remote location of its Linwood factory hampered its commercial success. Today, it is celebrated by collectors for its sharp rack-and-pinion steering and high-revving engine that offers a more sophisticated driving experience than many of its contemporary rivals.
Sunbeam Imp specs
The Sunbeam Imp produces 39 bhp (29 kW) and 70 Nm (52 lb-ft) of torque. It reaches 60 mph in 23.0 seconds and has a top speed of 80 mph (128 km/h).
| Make | Sunbeam |
|---|---|
| Model | Imp |
| Trim | 875cc |
| Years | 1963–1976 |
| Type | Classic |
| Body style | Saloon |
| Country | United Kingdom |
| Engine | 875cc overhead-cam inline-four |
|---|---|
| Displacement | 875 cc (0.9 litres) |
| Induction | Naturally aspirated |
| Power | 39 bhp (29 kW) at 5,000 rpm |
| Torque | 70 Nm (52 lb-ft) |
| Redline | 6,500 rpm |
| 0–60 mph | 23.0 s |
| Top speed | 80 mph (128 km/h) |
| Transmission | 4-speed manual |
| Drivetrain | Rear-wheel drive |
| Weight | 710 kg (1,565 lb) |
| Power-to-weight | 55 bhp per tonne |
Typical figures for the standard car; options, markets and model years vary. Where our specs come from
How much is a Sunbeam Imp worth?
A typical Sunbeam Imp is estimated to be worth $4,500 – $15,000 (about £3,400 – £11,000).
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
Sunbeam Imp rarity in CarSpot
The Sunbeam Imp is an Uncommon card in CarSpot, with a rarity score of 24 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.
Sunbeam Imp fun facts
- The Imp's engine was the first mass-produced British unit to feature an all-aluminium block and cylinder head.
- It was the first British car to feature a folding rear seat, a practical innovation that predated the modern hatchback era.
- The engine was so light that the entire powertrain, including the transaxle, weighed only about 80kg.