The Atom 4RR is an automobile from Ariel, with rear wheel drive, a mid positioned engine and a roadster body style.
The 2 litre engine is a turbocharged, double overhead camshaft, 4 cylinder that has an output of 525 bhp (532 PS/391 kW) of power at 8200 rpm, and maximum torque of 550 N·m (406 lb·ft/56.1 kgm) at 5200 rpm.
Power is transmitted to the wheels via a 6 speed manual gearbox.
Top claimed speed is 282 km/h (175 mph).
Full specs
|
|
|||
| bodywork | |||
|---|---|---|---|
| Body type | 2 seater roadster | ||
| Number of doors | 0 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2390 mm | 94.1 inches | |
| Track/tread (front) | 1600 mm | 63 inches | |
| Track/tread (rear) | 1615 mm | 63.6 inches | |
| Length | 3520 mm | 138.6 inches | |
| Width | 1880 mm | 74 inches | |
| Height | 1122 mm | 44.2 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.47 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | 40 litres | 8.8 [10.6] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | turbocharged petrol | ||
| Engine manufacturer | Honda | ||
| Engine code | K20C | ||
| Cylinders | Straight 4 | ||
| Capacity | 2 litre 1996 cc (121.803 cu in) |
||
| Bore × Stroke | 86 × 85.9 mm
3.39 × 3.38 in |
||
| Bore/stroke ratio | 1 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 16 valves in total |
||
| maximum power output | 532 PS (525 bhp) (391 kW) at 8200 rpm |
||
| maximum torque | 550 Nm (406 ft·lb) (56.1 kgm) at 5200 rpm |
||
| Specific output | 196.1 kW/litre 266.7 ps/litre 263 bhp/litre 4.31 bhp/cu in |
||
| Specific torque |
275.55 Nm/litre
3.33 ft·lb/cu3 |
||
| Engine construction | |||
| Lubrication | |||
| compression ratio | |||
| Fuel system | |||
| bmep (brake mean effective pressure) | 3462.7 kPa (502.2 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 499 cc | ||
| Aspiration | Turbo | ||
| Compressor | |||
| Intercooler | |||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | 2.4 s | ||
| Acceleration 0-160km/h (100mph) | 5.1 s | ||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 282 km/h (175 mph) | ||
| Power-to-weight ratio | |||
| Weight-to-power ratio | |||
| fuel consumption | |||
| Fuel consumption | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | mid | ||
| Engine layout | transverse | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | rack & pinion | ||
| turns lock-to-lock | 2.000 | ||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 7J x 16 | ||
| Wheel size rear | 9J x 17 | ||
| Tyres front | Yokohama A052 195/50 R 16 | ||
| Tyres rear | Yokohama A052 225/40 R 17 | ||
| Brakes F/R | VeDi/VeDi-S | ||
| Front brake diameter | 310 mm | ||
| Rear brake diameter | 310 mm | ||
| Braked area | |||
| Gearbox | 6 speed manual | ||
| Top gear ratio | |||
| Final drive ratio | |||
| general | |||
| Carfolio.com ID | 856394 | ||
| Production total | |||
| Model code | |||
| RAC rating | 18.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
|
2025 Ariel Atom 4RR added 2026-06-06. Last modified 2026-06-07. |
|||
