Comparison BMW Z4 (E85) 2.5i (192 Hp) & Alfa Romeo 146 (930) 1.4 i.e. (90 Hp)
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| Brand: | BMW | Alfa Romeo |
| Model: | Z4 | 146 |
| Generation: | Z4 (E85) | 146 (930) |
| Engine / modification: | 2.5i (192 Hp) | 1.4 i.e. (90 Hp) |
| Production start: | 2002 year | 1994 year |
| Production end: | 2006 year | 1996 year |
| Coupe type: | Cabriolet | Hatchback |
| Num. of Doors: | 2 | 5 |
| Num. of seats: | 2 | 5 |
| Fuel consumption / economy - urban: | 10.4 l/100 km | |
| Fuel consumption / economy - extra urban: | 5.7 l/100 km | |
| Fuel consumption / economy - combined: | 7.4 l/100 km | 8.3 l/100 km |
| Fuel Type: | Petrol (Gasoline) | Petrol (Gasoline) |
| Fuel tank volume: | 55 l | 51 l |
| Emission standard: | Euro 4 | |
| Power: | 192 hp | 90 hp |
| Max power in: | 6000 rpm. | 6000 rpm. |
| Maximum speed: | 235 km/h | 179 km/h |
| Acceleration from 0 to 100 km/h: | 7.0 sec | 12.8 sec |
| Torque: | 245 Nm @ 3500 rpm. | 115 Nm @ 4400 rpm. |
| Model Engine: | M54B25 | |
| Engine position: | Front, longitudinal | Front, longitudinal |
| Engine displacement: | 2494 cm3 | 1351 cm3 |
| Engine oil capacity: | 6.5 l | |
| Coolant: | 8.3 l | |
| Fuel System: | Multi-point injection | Multi-point injection |
| Position of cylinders: | Inline | Boxer |
| Valvetrain: | DOHC | OHC |
| Number of cylinders: | 6 | 4 |
| Number of valves per cylinder: | 4 | 2 |
| Compression ratio: | 10.5 | 9.5 |
| Piston Stroke: | 75 mm | 67.2 mm |
| Cylinder Bore: | 84 mm | 80 mm |
| Wheel Drive: | Rear wheel drive | Front wheel drive |
| Number of Gears (automatic transmission): | - | |
| Number of Gears (manual transmission): | 6 | 5 |
| Length: | 4091 mm | 4257 mm |
| Width: | 1781 mm | 1712 mm |
| Height: | 1299 mm | 1425 mm |
| Wheelbase: | 2495 mm | 2540 mm |
| Front track: | 1473 mm | 1472 mm |
| Rear (Back) track: | 1523 mm | 1441 mm |
| Minimum volume of Luggage (trunk): | 240 l | 380 l |
| Maximum amount of Luggage (trunk): | 260 l | 1225 l |
| Front suspension: | The depreciated rack | Wishbone |
| Rear suspension: | Helical spring | Trailing |
| Max weight: | 1560 kg | 1705 kg |
| Front brakes: | Ventilated discs | Ventilated discs |
| Rear brakes: | Ventilated discs | Disc |
| Kerb Weight: | 1335 kg | 1175 kg |
| ABS: | yes | yes |
| Steering type: | Steering rack and pinion | Steering rack and pinion |
| Power steering: | Electric Steering | Hydraulic Steering |
| Minimum turning circle (turning diameter): | 9.8 m | |
| Tire size: | 225/50 R16 | 175/65 R14 |
| Wheel rims size: | 7J x 16 |