Comparison Acura RLX (facelift 2017) 3.5 V6 (310 Hp) Automatic & Alpina B6 Gran Coupe (F06 LCI, Facelift 2015) 4.4 V8 (600 Hp) Allrad Switch-Tronic & Caterham Super 1.8 i 16V (124 Hp)
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| Brand: | Acura | Alpina | Caterham |
| Model: | RLX | B6 | Seven |
| Generation: | RLX (facelift 2017) | B6 Gran Coupe (F06 LCI, Facelift 2015) | Super |
| Engine / modification: | 3.5 V6 (310 Hp) Automatic | 4.4 V8 (600 Hp) Allrad Switch-Tronic | 1.8 i 16V (124 Hp) |
| Production start: | 2017 year | 2015 year | 1999 year |
| Production end: | 2020 year | 2001 year | |
| Coupe type: | Sedan | Coupe | Cabriolet |
| Num. of Doors: | 4 | 4 | 2 |
| Num. of seats: | 5 | 4 | 2 |
| Fuel consumption / economy - urban: | 12.3 l/100 km | 14.3 l/100 km | 12 l/100 km |
| Fuel consumption / economy - extra urban: | 8.5 l/100 km | 8.2 l/100 km | 7 l/100 km |
| Fuel consumption / economy - combined: | 9.7 l/100 km | 10.4 l/100 km | |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 70 l | 70 l | 36 l |
| Emission standard: | EURO VI | ||
| CO2 emissions: | 242 g/km | ||
| Power: | 310 hp | 600 hp | 124 hp |
| Max power in: | 6500 rpm. | 6000 rpm. | 5700 rpm. |
| Maximum speed: | 324 km/h | 190 km/h | |
| Acceleration from 0 to 100 km/h: | 3.8 sec | 5.9 sec | |
| Torque: | 369 Nm @ 4500 rpm. | 800 Nm/3500-4500 rpm. | 165 Nm @ 3000 rpm. |
| Model Engine: | J35Y4 | ||
| Engine position: | Front, transverse | Front, longitudinal | |
| Engine displacement: | 3500 cm3 | 4395 cm3 | 1795 cm3 |
| Engine oil capacity: | 4.3 l | ||
| Coolant: | 7.9 l | ||
| Fuel System: | Direct injection | Direct injection | Multi-point injection |
| Aspiration / Turbine: | BiTurbo | ||
| Position of cylinders: | V engine | V engine | Inline |
| Valvetrain: | SOHC, i-VTEC | DOHC | |
| Number of cylinders: | 6 | 8 | 4 |
| Number of valves per cylinder: | 4 | 4 | |
| Compression ratio: | 11.5 | 10 | 10.5 |
| Piston Stroke: | 88.3 mm | 89.3 mm | |
| Cylinder Bore: | 89 mm | 80 mm | |
| Wheel Drive: | Front wheel drive | All wheel drive (4x4) | Rear wheel drive |
| Number of Gears (automatic transmission): | 10 SportShift | 8 Switch-Tronic | - |
| Number of Gears (manual transmission): | 6 | ||
| Length: | 5023 mm | 5007 mm | 3380 mm |
| Width: | 1890 mm | 1894 mm | 1580 mm |
| Width including mirrors: | 2081 mm | ||
| Height: | 1465 mm | 1398 mm | 1120 mm |
| Wheelbase: | 2850 mm | 2968 mm | 2230 mm |
| Front track: | 1632 mm | 1594 mm | 1270 mm |
| Rear (Back) track: | 1630 mm | 1623 mm | 1330 mm |
| Ride height(clearance): | 115 mm | ||
| Front overhang: | 941 mm | ||
| Rear overhang: | 1098 mm | ||
| Minimum volume of Luggage (trunk): | 405 l | 460 l | 75 l |
| Maximum amount of Luggage (trunk): | 1265 l | ||
| Front suspension: | Double wishbone | Wishbone | |
| Rear suspension: | Multi-link independent | Suspension De-Dion | |
| Max weight: | 2550 kg | 860 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | Disc |
| Rear brakes: | Disc | Ventilated discs | Disc |
| Kerb Weight: | 1804 kg | 2020 kg | 550 kg |
| ABS: | yes | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Electric Steering | |
| Minimum turning circle (turning diameter): | 12.34 m | ||
| Tire size: | 245/40 R19 | 255/35 ZR20; 295/30 ZR20 | 185/65 R15 |
| Wheel rims size: | 8.0J x 19 | 8,5J x 20; 10J x 20 |