Alpina Roadster S E85
The rarest and most driver-focused Alpina of its era.
- Power
- 300 bhp
- 0–60 mph
- 5.1 s
- Top speed
- 168 mph
- Est. value
- $18k–$35k
About the Alpina Roadster S E85
Based on the E85 BMW Z4, the Alpina Roadster S was a bespoke alternative to the later Z4 M, prioritising a broader torque curve and superior ride quality. It features the hand-built E5/2 engine, an evolution of the S52 unit with Mahle pistons and a custom crankshaft, paired exclusively with a six-speed manual gearbox. Alpina replaced the standard run-flat tyres with Michelin Pilot Sports on 19-inch 'Dynamic' wheels to improve handling and comfort. With only 370 units produced globally, it remains one of the rarest modern Alpinas and a highly sought-after collector's item.
Alpina Roadster S E85 specs
The Alpina Roadster S E85 produces 300 bhp (224 kW) and 362 Nm (267 lb-ft) of torque. It reaches 60 mph in 5.1 seconds and has a top speed of 168 mph (270 km/h).
| Make | Alpina |
|---|---|
| Model | Roadster S |
| Generation | E85 |
| Trim | 3.4 |
| Years | 2004–2005 |
| Type | Sports car |
| Body style | Roadster |
| Country | Germany |
| Production | About 370 built |
| Engine | 3.4-litre inline-six |
|---|---|
| Displacement | 3,346 cc (3.3 litres) |
| Induction | Naturally aspirated |
| Power | 300 bhp (224 kW) at 6,300 rpm |
| Torque | 362 Nm (267 lb-ft) |
| Redline | 7,200 rpm |
| 0–60 mph | 5.1 s |
| Top speed | 168 mph (270 km/h) |
| Transmission | 6-speed manual |
| Drivetrain | Rear-wheel drive |
| Weight | 1,320 kg (2,910 lb) |
| Power-to-weight | 227 bhp per tonne |
Typical figures for the standard car; options, markets and model years vary. Where our specs come from
How much is an Alpina Roadster S E85 worth?
A typical Alpina Roadster S E85 is estimated to be worth $18,000 – $35,000 (about £13,000 – £26,000).
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
Alpina Roadster S E85 rarity in CarSpot
The Alpina Roadster S E85 is a Unicorn card in CarSpot, with a rarity score of 100 out of 100. The rarest tier: hypercars, one-offs and cars built in tiny numbers, typically fewer than about 500. A Unicorn card is worth 320 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.
Alpina Roadster S E85 fun facts
- The Roadster S was the last petrol-powered Alpina to be offered exclusively with a manual transmission.
- Fitting the optional factory hardtop increased the car's official top speed from 265 km/h to 270 km/h due to improved aerodynamics.
- Of the 370 cars built, exactly 167 were right-hand drive examples produced specifically for the UK market.