2005 Alpina Roadster vs. 2009 Hummer H3
To start off, 2009 Hummer H3 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2005 Alpina Roadster would be higher. At 3,651 cc (5 cylinders), 2009 Hummer H3 is equipped with a bigger engine. In terms of performance, 2005 Alpina Roadster (301 HP @ 6300 RPM) has 59 more horse power than 2009 Hummer H3. (242 HP @ 5600 RPM). In normal driving conditions, 2005 Alpina Roadster should accelerate faster than 2009 Hummer H3. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H3 weights approximately 574 kg more than 2005 Alpina Roadster.
Because 2009 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2009 Hummer H3 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, 2005 Alpina Roadster (362 Nm @ 4800 RPM) has 34 more torque (in Nm) than 2009 Hummer H3. (328 Nm @ 4600 RPM). This means 2005 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 2009 Hummer H3.
Compare all specifications:
| 2005 Alpina Roadster | 2009 Hummer H3 | |
| Make | Alpina | Hummer |
| Model | Roadster | H3 |
| Year Released | 2005 | 2009 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 3651 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 242 HP |
| Engine RPM | 6300 RPM | 5600 RPM |
| Torque | 362 Nm | 328 Nm |
| Torque RPM | 4800 RPM | 4600 RPM |
| Engine Bore Size | 87 mm | 95.5 mm |
| Engine Stroke Size | 93.8 mm | 102 mm |
| Engine Compression Ratio | 10.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1626 kg | 2200 kg |
| Vehicle Length | 4100 mm | 4790 mm |
| Vehicle Width | 1790 mm | 1900 mm |
| Vehicle Height | 1300 mm | 2000 mm |
| Wheelbase Size | 2500 mm | 2850 mm |
| Fuel Consumption Overall | 11.7 L/100km | 14.7 L/100km |
| Fuel Tank Capacity | 55 L | 87 L |
