2006 BMW Z4 Roadster 2.5Si 0-60, quarter mile, specs
| 0-60 mph | 6.8 seconds |
| 0-100 kph | 7.2 seconds |
| Quarter mile | 15.9 s @ 96 mph |
| Top speed | 240 kph / 149 mph |
| Price | $38,000 |
| Curb weight | 1353 kilograms (2983 pounds) |
| Year introduced | 2006 |
| Displacement | 2500 cubic centimeters (2.5 liters / 153 cubic inches) |
| Maximum power | 218 metric horsepower (215 brake horsepower / 160 kilowatts) |
| Maximum torque | 250 Newton-meters (184 pound-feet) |
| Engine location | front-mounted |
| Drive | rear wheel drive |
BMW Z4 Roadster 2.5Si 0-60 and acceleration in miles per hour
| 0-10 mph | 1.0 s |
| 0-20 mph | 1.9 s |
| 0-30 mph | 2.8 s |
| 0-40 mph | 3.9 s |
| 0-50 mph | 5.1 s |
| 0-60 mph | 6.8 s |
| 0-70 mph | 9.1 s |
| 0-80 mph | 12.4 s |
| 0-90 mph | 15.5 s |
BMW Z4 Roadster 2.5Si quarter mile and acceleration in feet
| 300 feet | 6.8 s @ 60 mph |
| 1/8 mile | 10.6 s @ 80 mph |
| 1000 feet | 13.5 s @ 90 mph |
| Quarter mile | 15.9 s @ 96 mph |
BMW Z4 Roadster 2.5Si acceleration times in kilometers per hour
| 0-10 kph | 0.7 s |
| 0-20 kph | 1.3 s |
| 0-30 kph | 1.8 s |
| 0-40 kph | 2.4 s |
| 0-50 kph | 2.9 s |
| 0-60 kph | 3.6 s |
| 0-70 kph | 4.3 s |
| 0-80 kph | 5.1 s |
| 0-90 kph | 6.0 s |
| 0-100 kph | 7.2 s |
| 0-110 kph | 8.7 s |
| 0-120 kph | 10.6 s |
| 0-130 kph | 12.6 s |
| 0-140 kph | 14.6 s |
| 0-150 kph | 16.3 s |
| 0-160 kph | 17.6 s |
BMW Z4 Roadster 2.5Si distance acceleration in meters
| 100 meters | 7.2 s @ 100 kph |
| 200 meters | 10.5 s @ 128 kph |
| 300 meters | 13.4 s @ 144 kph |
| 400 meters | 15.8 s @ 154 kph |
