Comparison BMW Z4 Coupe (E86) M 3.2 (343 Hp) & Mazda 626 III (GD) 2.0 D (60 Hp) & BMW Z4 (E89) 20i (184 Hp) sDrive & Mazda RX-8 1.3 Wankel (215 Hp)
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| Brand: | BMW | Mazda | BMW | Mazda |
| Model: | Z4 | 626 | Z4 | RX-8 |
| Generation: | Z4 Coupe (E86) | 626 III (GD) | Z4 (E89) | RX-8 |
| Engine / modification: | M 3.2 (343 Hp) | 2.0 D (60 Hp) | 20i (184 Hp) sDrive | 1.3 Wankel (215 Hp) |
| Production start: | 2006 year | 1987 year | 2011 year | 2005 year |
| Production end: | 2008 year | 1991 year | 2013 year | 2009 year |
| Coupe type: | Coupe | Sedan | Cabriolet | Coupe |
| Num. of Doors: | 2 | 2 | 4 | |
| Num. of seats: | 2 | 2 | 4 | |
| Fuel consumption / economy - urban: | 18.2 l/100 km | 8.9 l/100 km | 13.1 l/100 km | |
| Fuel consumption / economy - extra urban: | 8.6 l/100 km | 5.6 l/100 km | 9.4 l/100 km | |
| Fuel consumption / economy - combined: | 12.1 l/100 km | 6.8 l/100 km | ||
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 55 l | 55 l | 61 l | |
| Emission standard: | Euro 4 | |||
| CO2 emissions: | 159 g/km | |||
| Power: | 343 hp | 60 hp | 184 hp | 215 hp |
| Max power in: | 7900 rpm. | 5000 rpm. | 7500 rpm. | |
| Maximum speed: | 250 km/h | 235 km/h | ||
| Acceleration from 0 to 100 km/h: | 5 sec | 6.9 sec | ||
| Torque: | 365 Nm @ 4900 rpm. | 270 Nm @ 1250-4500 rpm. | 216 Nm @ 7500 rpm. | |
| Model Engine: | S54B32 | N20B20 | ||
| Engine position: | Front, longitudinal | Front, longitudinal | Front, longitudinal | |
| Engine displacement: | 3246 cm3 | 1997 cm3 | 1308 cm3 | |
| Engine oil capacity: | 5.5 l | 4.75 l | ||
| Fuel System: | Multi-point injection | Direct injection | Multi-point injection | |
| Aspiration / Turbine: | Twin-power turbo | |||
| Position of cylinders: | Inline | Inline | Inline | |
| Valvetrain: | DOHC | |||
| Number of cylinders: | 6 | 4 | 2 | |
| Number of valves per cylinder: | 4 | 4 | ||
| Compression ratio: | 11.5 | 10 | 10 | |
| Piston Stroke: | 91 mm | 90.1 mm | ||
| Cylinder Bore: | 87 mm | 84 mm | ||
| Wheel Drive: | Rear wheel drive | Rear wheel drive | Rear wheel drive | |
| Number of Gears (automatic transmission): | 6 | |||
| Number of Gears (manual transmission): | 6 | 6 | ||
| Length: | 4113 mm | 4239 mm | 4427 mm | |
| Width: | 1781 mm | 1790 mm | 1770 mm | |
| Height: | 1271 mm | 1291 mm | 1340 mm | |
| Wheelbase: | 2497 mm | 2496 mm | 2700 mm | |
| Front track: | 1486 mm | 1511 mm | 1500 mm | |
| Rear (Back) track: | 1516 mm | 1559 mm | 1505 mm | |
| Minimum volume of Luggage (trunk): | 245 l | |||
| Maximum amount of Luggage (trunk): | 300 l | 290 l | ||
| Front suspension: | Independent, Spring McPherson, with stabilizer | Independent, spring | ||
| Rear suspension: | Helical spring | Independent, spring | ||
| Max weight: | 1730 kg | 1725 kg | 1748 kg | |
| Front brakes: | Ventilated discs | Ventilated discs | ||
| Rear brakes: | Ventilated discs | Disc | ||
| Kerb Weight: | 1425 kg | 1470 kg | 1395 kg | |
| ABS: | yes | yes | yes | |
| Steering type: | Steering rack and pinion | Steering rack and pinion | ||
| Power steering: | Electric Steering | |||
| Minimum turning circle (turning diameter): | 10.5 m | |||
| Tire size: | 225/45 R18; 255/40 R18 | 225/45 R17 W | 225/55R16 | |
| Wheel rims size: | R18 | 8J x 17 | R16 |