The Subaru R2 is a kei car that was produced by Subaru between December 2003 and March 2010. Positioned as an entry-level vehicle, the R2 aimed to provide affordable and practical transportation within the unique regulations governing Japan’s kei car class. The 0.7i 4WD variant, powered by a 658cc engine producing 45 horsepower, represented a core offering within the R2 lineup, emphasizing fuel efficiency and all-weather capability. It was part of the second generation of Subaru’s kei car efforts, following the earlier Subaru Stella.
Technical Specifications
| Brand | Subaru |
| Model | R2 |
| Generation | R2 |
| Type (Engine) | 0.7i (45 Hp) 4WD |
| Start of production | December, 2003 |
| End of production | March, 2010 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 17.1 kg/Hp, 58.4 Hp/tonne |
| Weight-to-torque ratio | 13.8 kg/Nm, 72.7 Nm/tonne |
| Power | 45 Hp @ 6400 rpm |
| Power per litre | 68.4 Hp/l |
| Torque | 56 Nm @ 4000 rpm, 41.3 lb.-ft. @ 4000 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | EN07 |
| Engine displacement | 658 cm3, 40.15 cu. in. |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 56 mm, 2.2 in. |
| Piston Stroke | 66.8 mm, 2.63 in. |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHC |
| Engine oil capacity | 2.4 l, 2.54 US qt | 2.11 UK qt |
| Kerb Weight | 770 kg, 1697.56 lbs |
| Fuel tank capacity | 30 l, 7.93 US gal | 6.6 UK gal |
| Length | 3395 mm, 133.66 in. |
| Width | 1475 mm, 58.07 in. |
| Height | 1520 mm, 59.84 in. |
| Wheelbase | 2360 mm, 92.91 in. |
| Front track | 1295 mm, 50.98 in. |
| Rear (Back) track | 1285 mm, 50.59 in. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Tires size | 155/65 R14 |
Powertrain & Engine Architecture
The heart of the R2 0.7i 4WD is the EN07 engine, a 658cc inline-four cylinder petrol engine. This engine is specifically designed to meet the stringent requirements of the Japanese kei car regulations, which limit engine displacement and output. The EN07 utilizes a single overhead camshaft (OHC) valvetrain and multi-point fuel injection. The engine’s relatively simple design prioritized reliability and fuel economy over outright performance. The 45 horsepower peak is achieved at 6400 rpm, while the 56 Nm (41.3 lb-ft) of torque is delivered at 4000 rpm. The engine’s small displacement and naturally aspirated configuration mean that power delivery is relatively linear, but requires the driver to utilize the engine’s rev range effectively. The R2 0.7i 4WD exclusively came with a five-speed manual transmission, offering a direct connection between the engine and the wheels.
Driving Characteristics
The R2 0.7i 4WD’s driving experience is defined by its lightweight construction and modest power output. Acceleration is understandably leisurely, but the all-wheel-drive system provides enhanced traction, particularly on slippery surfaces. The five-speed manual transmission allows for precise control over the engine’s powerband. Compared to a hypothetical higher-powered R2 variant, the 0.7i 4WD prioritizes fuel efficiency and ease of driving over sporty performance. The gear ratios are tuned for maximizing fuel economy and providing adequate acceleration in urban environments. While not a performance car, the R2 0.7i 4WD offers a surprisingly nimble and engaging driving experience, especially on winding roads.
Equipment & Trim Levels
The R2 0.7i 4WD was typically equipped with basic, yet functional features. Standard equipment included air conditioning, power steering, and a basic audio system. Interior upholstery was typically cloth, and the dashboard featured a simple, straightforward design. Optional extras could include alloy wheels, upgraded audio systems, and various cosmetic enhancements. The R2 aimed for practicality and affordability, so luxury features were generally limited. The focus was on providing a comfortable and reliable transportation solution for everyday use.
Chassis & Braking
The R2 0.7i 4WD features a relatively simple chassis design. The front suspension utilizes MacPherson struts, while the rear suspension employs a torsion beam setup. This configuration balances ride comfort with handling stability. The braking system consists of ventilated discs on the front wheels and drum brakes on the rear. This configuration was common for kei cars of this era, balancing cost and performance. The relatively light weight of the R2 helps to compensate for the less powerful rear drum brakes. The all-wheel-drive system contributes to improved braking performance, particularly on loose surfaces.
Market Reception & Comparison
The Subaru R2 0.7i 4WD was generally well-received in the Japanese market as a practical and affordable kei car. Critics praised its fuel efficiency, all-wheel-drive capability, and compact size. However, some reviewers noted its limited power and basic interior. Compared to other kei car offerings, such as the Honda Beat or the Suzuki Cappuccino, the R2 prioritized practicality and affordability over sporty performance. Within the R2 lineup, the 0.7i 4WD represented the core offering, appealing to a broad range of customers seeking a reliable and economical vehicle. Fuel economy was a key selling point, and the R2 consistently achieved competitive figures in its class.
Legacy
The Subaru R2, while not a groundbreaking vehicle, played an important role in Subaru’s kei car strategy. The EN07 engine proved to be a reliable and durable powerplant, and many R2s remain on the road today. In the used car market, the R2 0.7i 4WD is valued for its affordability, fuel efficiency, and all-wheel-drive capability. Maintenance costs are generally low, and parts availability is reasonable. While not a collector’s item, the R2 represents a unique and interesting chapter in Subaru’s history, showcasing the company’s ability to produce compact and efficient vehicles for the Japanese market. Its simple design and robust engine contribute to its continued usability and appeal to budget-conscious buyers.
