Subaru Rex KM1
The front-wheel drive revolution for Subaru's iconic kei car.
- Power
- 31 bhp
- Top speed
- 68 mph
- Est. value
- $2k–$7k
About the Subaru Rex KM1
The second-generation Subaru Rex, introduced in 1981, marked a radical departure for the model by switching from a rear-engine, rear-wheel-drive layout to a modern front-engine, front-wheel-drive configuration. This change, which Subaru famously claimed left only 'two connecting rods and an ashtray' from the predecessor, significantly improved interior space and packaging. Powered by the EK23 two-cylinder engine, it remained a staple of the Japanese kei car class while also finding success in export markets as the Mini Jumbo or Sherpa. Its lightweight chassis and independent suspension provided nimble handling, eventually serving as the mechanical foundation for the larger Subaru Justy.
Subaru Rex KM1 specs
The Subaru Rex KM1 produces 31 bhp (23 kW) and 43 Nm (32 lb-ft) of torque. It has a top speed of 68 mph (110 km/h).
| Make | Subaru |
|---|---|
| Model | Rex |
| Generation | KM1 |
| Trim | KM1 |
| Years | 1981–1986 |
| Type | JDM |
| Body style | Hatchback |
| Country | Japan |
| Engine | 544cc EK23 two-cylinder |
|---|---|
| Displacement | 544 cc (0.5 litres) |
| Induction | Naturally aspirated |
| Power | 31 bhp (23 kW) at 6,000 rpm |
| Torque | 43 Nm (32 lb-ft) |
| Redline | 7,000 rpm |
| Top speed | 68 mph (110 km/h) |
| Transmission | 4-speed manual |
| Drivetrain | Front-wheel drive |
| Weight | 565 kg (1,246 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 Subaru Rex KM1 worth?
A typical Subaru Rex KM1 is estimated to be worth $2,000 – $6,500 (about £1,500 – £4,800).
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
Subaru Rex KM1 rarity in CarSpot
The Subaru Rex KM1 is an Uncommon card in CarSpot, with a rarity score of 16 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.
Subaru Rex KM1 fun facts
- Subaru claimed that only two connecting rods and an ashtray were carried over from the first-generation Rex to the second.
- The second-generation Rex was the first car in the kei class to offer an optional on-demand 4WD system, engaged by a button on the gear lever.
- In export markets like Europe and Australia, this generation was variously known as the Subaru 600, 700, Mini Jumbo, or Sherpa.
