2007 BMW Z4 3.0i Roadster vs. 2007 BMW Z4 3.0si Coupe
To start off, both 2007 BMW Z4 3.0i Roadster and 2007 BMW Z4 3.0si Coupe were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. Both 2007 BMW Z4 3.0i Roadster and 2007 BMW Z4 3.0si Coupe are equipped with a 2,996 cc engine. In terms of performance, 2007 BMW Z4 3.0si Coupe (261 HP @ 6600 RPM) has 6 more horse power than 2007 BMW Z4 3.0i Roadster. (255 HP @ 6600 RPM) In normal driving conditions, 2007 BMW Z4 3.0si Coupe should accelerate faster than 2007 BMW Z4 3.0i Roadster.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 BMW Z4 3.0si Coupe (315 Nm @ 2750 RPM) has 17 more torque (in Nm) than 2007 BMW Z4 3.0i Roadster. (298 Nm @ 2750 RPM). This means 2007 BMW Z4 3.0si Coupe will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4 3.0i Roadster.
Compare all specifications:
| 2007 BMW Z4 3.0i Roadster | 2007 BMW Z4 3.0si Coupe | |
| Make | BMW | BMW |
| Model | Z4 | Z4 |
| Year Released | 2007 | 2007 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 261 HP |
| Engine RPM | 6600 RPM | 6600 RPM |
| Torque | 298 Nm | 315 Nm |
| Torque RPM | 2750 RPM | 2750 RPM |
| Engine Bore Size | 85 mm | 85 mm |
| Engine Stroke Size | 88 mm | 88 mm |
| Engine Compression Ratio | 10.7:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 5.7 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1398 kg | 1398 kg |
| Vehicle Length | 4100 mm | 4230 mm |
| Vehicle Width | 1790 mm | 1790 mm |
| Vehicle Height | 1300 mm | 1270 mm |
| Wheelbase Size | 2500 mm | 2500 mm |
| Fuel Consumption | 7.8 L/100km | 7.8 L/100km |
| Fuel Consumption City | 11.8 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 9.8 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 55 L | 55 L |
