| 8 version of the engine | 12 | | Typ | 120i | 125i | 135i | 135i | 1M |
| Engine | benzynowy | benzynowy | benz., twin turbo | benzynowy, turbo | benzynowy, turbo |
| Type of injection | bezpośredni | pośredni MPI | bezpośredni | bezpośredni | bezpośredni |
| Engine Code | N43B20 | N52B30 | N54B30 | N55B30 | N54B30 |
| Years of mounting | 2007-2012 | 2007-2012 | 2007-2010 | 2010-2012 | 2011-2012 |
| Cylinders/valves | R4/16 | R6/24 | R6/24 | R6/24 | R6/24 |
| Displacement [cm³] | 1995 | 2996 | 2979 | 2979 | 2979 |
| Power [kW/PS/RPM] | 125/170/6700 | 160/218/6100 | 225/306/5800 | 225/306/5800 | 250/340/5900 |
| Torque [Nm/RPM] | 210/4250 | 270/2500-4250 | 400/1300-5000 | 400/1200-5000 | 500/1500-4500 |
| Timing gear | łańcuch | łańcuch | łańcuch | łańcuch | łańcuch |
| Particle filter | - | - | - | - | - |
| Gearbox | manual. 6b/aut. 6b | manual. 6b/aut. 6b | manual. 6b/aut. 6b | man. 6b/M DKG 7b | manualna 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] | 1300/1320 | 1405/1430 | 1485/1490 | 1455/1470 | 1495 |
| Body dimensions [mm] | 4360/1748/1423 | 4360/1748/1423 | 4360/1748/1408 | 4360/1748/1408 | 4380/1803/1420 |
| Luggage capacity [l] | 370 | 370 | 370 | 370 | 370 |
| Acceleration 0-100km/h (0-62mph) [s] | 7,8/8,4 | 6,4/7,0 | 5,3/5,4 | 5,3/5,2 | 4,9 |
| Top speed [km/h] | 224/222 | 245/243 | 250 | 250 | 250 |
| Fuel cons. (city/h-way/comb.) [l/100km] | 8,9/5,3/6,6 | 11,9/6,0/8,2 | 13,2/6,9/9,2 | 12,1/6,4/8,5 | 13,6/7,3/9,6 |
| Fuel tank capacity [l] | 53 | 53 | 53 | 53 | 53 |
| Ratio kg/PS | 7.65/7.76 | 6.44/6.56 | 4.85/4.87 | 4.75/4.8 | 4.4 |