2009 Alpina Roadster vs. 2007 BMW X5
To start off, 2009 Alpina Roadster is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW X5. In addition, the cost of maintenance, including insurance, on 2007 BMW X5 would be higher. At 3,346 cc (6 cylinders), 2009 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2009 Alpina Roadster (296 HP @ 6300 RPM) has 36 more horse power than 2007 BMW X5. (260 HP @ 6600 RPM). In normal driving conditions, 2009 Alpina Roadster should accelerate faster than 2007 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 555 kg more than 2009 Alpina Roadster.
Because 2007 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2007 BMW X5 will offer significantly more control. 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 Alpina Roadster (362 Nm @ 4800 RPM) has 57 more torque (in Nm) than 2007 BMW X5. (305 Nm @ 2750 RPM). This means 2009 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW X5. 2007 BMW X5 has automatic transmission and 2009 Alpina Roadster has manual transmission. 2009 Alpina Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Alpina Roadster | 2007 BMW X5 | |
| Make | Alpina | BMW |
| Model | Roadster | X5 |
| Year Released | 2009 | 2007 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 296 HP | 260 HP |
| Engine RPM | 6300 RPM | 6600 RPM |
| Torque | 362 Nm | 305 Nm |
| Torque RPM | 4800 RPM | 2750 RPM |
| Engine Compression Ratio | 10.2:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 265 km/hour | 204 km/hour |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1395 kg | 1950 kg |
| Vehicle Length | 4100 mm | 4860 mm |
| Vehicle Width | 1790 mm | 1940 mm |
| Vehicle Height | 1300 mm | 1940 mm |
| Wheelbase Size | 2500 mm | 2940 mm |
| Fuel Tank Capacity | 55 L | 70 L |
