1981 Alpina B9 3.5 (245 PS) E28 0-60, quarter mile, specs
| 0-60 mph | 7.3 seconds |
| 0-100 kph | 7.7 seconds |
| Quarter mile | 16.2 s @ 96 mph |
| Top speed | 243 kph / 151 mph |
| Curb weight | 1409 kilograms (3106 pounds) |
| Years built | 1981 - 1985 |
| Displacement | 3430 cubic centimeters (3.4 liters / 209 cubic inches) |
| Maximum power | 244 metric horsepower (241 brake horsepower / 180 kilowatts) @ 5700 rpm |
| Maximum torque | 320 Newton-meters (236 pound-feet) @ 4000 rpm |
| Engine location | front-mounted |
| Drive | rear wheel drive |
Alpina B9 3.5 (245 PS) 0-60 and acceleration in miles per hour
| 0-10 mph | 1.1 s |
| 0-20 mph | 2.2 s |
| 0-30 mph | 3.2 s |
| 0-40 mph | 4.3 s |
| 0-50 mph | 5.6 s |
| 0-60 mph | 7.3 s |
| 0-70 mph | 9.6 s |
| 0-80 mph | 12.8 s |
| 0-90 mph | 15.8 s |
Alpina B9 3.5 (245 PS) quarter mile and acceleration in feet
| 300 feet | 7.1 s @ 59 mph |
| 1/8 mile | 10.9 s @ 78 mph |
| 1000 feet | 13.8 s @ 89 mph |
| Quarter mile | 16.2 s @ 96 mph |
Alpina B9 3.5 (245 PS) acceleration times in kilometers per hour
| 0-10 kph | 0.7 s |
| 0-20 kph | 1.4 s |
| 0-30 kph | 2.0 s |
| 0-40 kph | 2.6 s |
| 0-50 kph | 3.3 s |
| 0-60 kph | 4.0 s |
| 0-70 kph | 4.7 s |
| 0-80 kph | 5.6 s |
| 0-90 kph | 6.6 s |
| 0-100 kph | 7.7 s |
| 0-110 kph | 9.2 s |
| 0-120 kph | 11.0 s |
| 0-130 kph | 13.0 s |
| 0-140 kph | 15.0 s |
| 0-150 kph | 16.6 s |
| 0-160 kph | 17.8 s |
Alpina B9 3.5 (245 PS) distance acceleration in meters
| 100 meters | 7.4 s @ 97 kph |
| 200 meters | 10.8 s @ 126 kph |
| 300 meters | 13.7 s @ 143 kph |
| 400 meters | 16.1 s @ 154 kph |
