BMW Z4 E85 roadster - specifications
| 8 version of the engine | 12 | ||||
| Typ | 2.0i | 2.2i | 2.5i | 2.5i | 2.5si |
| Engine | benzynowy | benzynowy | benzynowy | benzynowy | benzynowy |
| Type of injection | pośredni MPI | pośredni MPI | pośredni MPI | pośredni MPI | pośredni MPI |
| Engine Code | N46B20 | M54B22 | N52B25 | M54B25 | N52B25 |
| Years of mounting | 2005-2008 | 2003-2006 | 2006-2008 | 2002-2006 | 2006-2008 |
| Cylinders/valves | R4/16 | R6/24 | R6/24 | R6/24 | R6/24 |
| Displacement [cm³] | 1995 | 2171 | 2497 | 2494 | 2497 |
| Power [kW/PS/RPM] | 110/150/6200 | 125/170/6100 | 130/177/5800 | 141/192/6000 | 160/218/6500 |
| Torque [Nm/RPM] | 200/3600 | 210/3500 | 230/3500-5000 | 245/3500 | 250/2750-4250 |
| Timing gear | łańcuch | łańcuch | łańcuch | łańcuch | łańcuch |
| Particle filter | - | - | - | - | - |
| Gearbox | manualna 6b | manual. 5b/aut. 5b | manual. 6b/aut. 6b | manual. 5b/aut. 5b | manual. 6b/aut. 6b |
| Drivetrain | tylny | tylny | tylny | tylny | tylny |
| Brakes, front/rear | tarcz.went./t. went. | tarcz.went./t. went. | tarcz.went./t. went. | tarcz.went./t. went. | tarcz.went./t. went. |
| Front suspension | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona |
| Rear suspension | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe |
| Curb weight [kg] | 1220 | 1250/1285 | 1270/1300 | 1260/1290 | 1285/1320 |
| Body dimensions [mm] | 4091/1781/1299 | 4091/1781/1299 | 4091/1781/1299 | 4091/1781/1299 | 4091/1781/1299 |
| Luggage capacity [l] | 240 | 240 | 240 | 240 | 240 |
| Acceleration 0-100km/h (0-62mph) [s] | 8,2 | 7,7/8,3 | 7,0/7,5 | 7,0/7,5 | 6,5/6,9 |
| Top speed [km/h] | 220 | 225/221 | 229/225 | 235/227 | 240/238 |
| Fuel cons. (city/h-way/comb.) [l/100km] | 10,8/5,6/7,5 | 13,7/6,9/9,4 | 12,0/6,3/8,4 | 13,5/7,3/9,5 | 12,8/6,8/9,0 |
| Fuel tank capacity [l] | 55 | 55 | 55 | 55 | 55 |
| Ratio kg/PS | 8.13 | 7.35/7.56 | 7.18/7.34 | 6.56/6.72 | 5.89/6.06 |
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