Technical Specifications BMW 1 Series Convertible 123d M Sport
| Dimensions | |
| Wheelbase | 2660 |
| Vehicle length | 4360 |
| Vehicle width | 1748 |
| Vehicle height | 1411 |
| Track, front | 1480 |
| Track, rear | 1513 |
| Performance | |
| Drag (cD) | 0.32 |
| Top speed (mph) | 143 |
| Acceleration 0-62 mph (sec) | 7.5 (8.2) |
| Acceleration 50-75 mph in 4th (sec) | |
| Engine | |
| Cylinders/valves | 4/16 |
| Capacity (cc) | 1995 |
| Stroke/Bore (mm) | 90/84 |
| Max output (kW/hp/rpm) | 150/204/4400 |
| Max torque (Nm/rpm) | 400/2000 |
| Weight | |
| Unladen (EU) | 1585 (1595) |
| Max permissible | 1950 (1960) |
| Permitted load | 440 |
| Permitted axle load, front/rear | 905/1095 |
| Wheels | |
| Tyre size front | 205/50 R17 |
| Tyre size rear | 255/45 R17 |
| Wheel size front | 7J x 17 Light alloy |
| Wheel size rear | 7.5J x 17 Light alloy |
| Fuel consumption | |
| Imperial | |
| Urban (mpg) | 42.2 (37.2) |
| Extra-urban (mpg) | 61.4 (57.6) |
| Combined (mpg) | 52.3 (47.9) |
| Metric | |
| Urban (ltr/100km) | 6.7 (7.6) |
| Extra-urban (ltr/100km) | 4.6 (4.9) |
| Combined (ltr/100km) | 5.4 (5.9) |
| CO2 emissions (g/km) | 144 (154) |
| Tank capacity (ltr) | 51 |
