| 12 version of the engine | 123 | | Typ | E30 | E30 | E30 | E30 Evolution | E30 Evolution ll |
| Engine | benzynowy | benzynowy | benzynowy | benzynowy | benzynowy |
| Type of injection | pośredni MPI | pośredni MPI | pośredni MPI | pośredni MPI | pośredni MPI |
| Engine Code | S14B23 | S14B23 | S14B23 | S14B23 | S14B25 |
| Years of mounting | 1986-1991 | 1987-1991 | 1989-1991 | 1988-1990 | 1990-1992 |
| Cylinders/valves | R4/16 | R4/16 | R4/16 | R4/16 | R4/16 |
| Displacement [cm³] | 2302 | 2302 | 2302 | 2302 | 2467 |
| Power [kW/PS/RPM] | 144/195/6750 | 147/200/6750 | 158/215/6750 | 162/220/6750 | 175/238/7000 |
| Torque [Nm/RPM] | 230/4750 | 240/4750 | 230/4600 | 240/4750 | 240/4750 |
| Timing gear | łańcuch | łańcuch | łańcuch | łańcuch | łańcuch |
| Particle filter | - | - | - | - | - |
| Gearbox | manualna 5b | manualna 5b | manualna 5b | manualna 5b | manualna 5b |
| Drivetrain | tylny | tylny | tylny | tylny | tylny |
| Brakes, front/rear | tarcz. went./tarcz. | tarcz. went./tarcz. | tarcz. went./tarcz. | tarcz. went./tarcz. | tarcz. went./tarcz. |
| Front suspension | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona | kol. MacPhersona |
| Rear suspension | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe | wielowahaczowe |
| Curb weight [kg] | 1200 | 1165 | 1200 | 1200 | 1200 |
| Body dimensions [mm] | 4345/1680/1370 | 4345/1680/1370 | 4345/1680/1370 | 4345/1680/1370 | 4345/1680/1370 |
| Luggage capacity [l] | 425 | 425 | 425 | 425 | 425 |
| Acceleration 0-100km/h (0-62mph) [s] | 6,8 | 6,7 | 6,7 | 6,7 | 6,5 |
| Top speed [km/h] | 230 | 235 | 240 | 243 | 248 |
| Fuel cons. (city/h-way/comb.) [l/100km] | 12,4/6,2/8,8 | 11,6/5,8/8,3 | 12,4/6,2/8,8 | 11,0/5,7/8,0 | 12,5/6,2/8,8 |
| Fuel tank capacity [l] | 70 | 70 | 70 | 70 | 70 |
| Ratio kg/PS | 6.15 | 5.83 | 5.58 | 5.45 | 5.04 |