2008 Hummer H2 vs. 2006 Smart Roadster
To start off, 2008 Hummer H2 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2006 Smart Roadster would be higher. At 6,199 cc (8 cylinders), 2008 Hummer H2 is equipped with a bigger engine. In terms of performance, 2008 Hummer H2 (393 HP @ 5700 RPM) has 312 more horse power than 2006 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 2008 Hummer H2 should accelerate faster than 2006 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2008 Hummer H2 weights approximately 2018 kg more than 2006 Smart Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Hummer H2 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Smart Roadster. In wet, icy, snow, or gravel driving conditions, 2008 Hummer H2 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, 2008 Hummer H2 (564 Nm @ 4300 RPM) has 454 more torque (in Nm) than 2006 Smart Roadster. (110 Nm @ 3000 RPM). This means 2008 Hummer H2 will have an easier job in driving up hills or pulling heavy equipment than 2006 Smart Roadster.
Compare all specifications:
| 2008 Hummer H2 | 2006 Smart Roadster | |
| Make | Hummer | Smart |
| Model | H2 | Roadster |
| Year Released | 2008 | 2006 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 6199 cc | 698 cc |
| Engine Cylinders | 8 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 393 HP | 81 HP |
| Engine RPM | 5700 RPM | 5250 RPM |
| Torque | 564 Nm | 110 Nm |
| Torque RPM | 4300 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2903 kg | 885 kg |
| Vehicle Length | 4830 mm | 3430 mm |
| Vehicle Width | 2070 mm | 1620 mm |
| Vehicle Height | 2020 mm | 1200 mm |
| Wheelbase Size | 3130 mm | 2370 mm |
| Fuel Consumption Overall | 15.7 L/100km | 5.1 L/100km |
| Fuel Tank Capacity | 121 L | 35 L |
