2009 BMW Z4 Roadster 2.5i vs. 2009 BMW Z4 M Exclusive Roadster
To start off, both 2009 BMW Z4 Roadster 2.5i and 2009 BMW Z4 M Exclusive Roadster were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,246 cc (6 cylinders), 2009 BMW Z4 M Exclusive Roadster is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 M Exclusive Roadster (338 HP @ 7900 RPM) has 162 more horse power than 2009 BMW Z4 Roadster 2.5i. (176 HP @ 5800 RPM) In normal driving conditions, 2009 BMW Z4 M Exclusive Roadster should accelerate faster than 2009 BMW Z4 Roadster 2.5i. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 M Exclusive Roadster weights approximately 140 kg more than 2009 BMW Z4 Roadster 2.5i. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2009 BMW Z4 M Exclusive Roadster (365 Nm @ 4900 RPM) has 135 more torque (in Nm) than 2009 BMW Z4 Roadster 2.5i. (230 Nm @ 3500 RPM). This means 2009 BMW Z4 M Exclusive Roadster will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4 Roadster 2.5i.
Compare all specifications:
| 2009 BMW Z4 Roadster 2.5i | 2009 BMW Z4 M Exclusive Roadster | |
| Make | BMW | BMW |
| Model | Z4 | Z4 |
| Year Released | 2009 | 2009 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 3246 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 176 HP | 338 HP |
| Engine RPM | 5800 RPM | 7900 RPM |
| Torque | 230 Nm | 365 Nm |
| Torque RPM | 3500 RPM | 4900 RPM |
| Engine Compression Ratio | 11.0:1 | 11.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 229 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.5 seconds | 5 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 | 1345 kg | 1485 kg |
| Vehicle Length | 4100 mm | 4120 mm |
| Vehicle Width | 1790 mm | 1310 mm |
| Vehicle Height | 1310 mm | 1790 mm |
| Wheelbase Size | 2500 mm | 2500 mm |
| Fuel Consumption Overall | 8.2 L/100km | 12.3 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
