2009 Hummer H3 vs. 2007 Opel Signum
To start off, 2009 Hummer H3 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Opel Signum. In addition, the cost of maintenance, including insurance, on 2007 Opel Signum would be higher. At 3,653 cc (5 cylinders), 2009 Hummer H3 is equipped with a bigger engine. In terms of performance, 2009 Hummer H3 (243 HP @ 5600 RPM) has 68 more horse power than 2007 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2009 Hummer H3 should accelerate faster than 2007 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2009 Hummer H3 weights approximately 561 kg more than 2007 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Opel Signum. 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, 2007 Opel Signum (370 Nm @ 1900 RPM) has 42 more torque (in Nm) than 2009 Hummer H3. (328 Nm @ 4600 RPM). This means 2007 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2009 Hummer H3.
Compare all specifications:
| 2009 Hummer H3 | 2007 Opel Signum | |
| Make | Hummer | Opel |
| Model | H3 | Signum |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3653 cc | 2958 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 243 HP | 175 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 328 Nm | 370 Nm |
| Torque RPM | 4600 RPM | 1900 RPM |
| Engine Bore Size | 95.5 mm | 87.5 mm |
| Engine Stroke Size | 102 mm | 82 mm |
| Engine Compression Ratio | 10.0:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2231 kg | 1670 kg |
| Vehicle Length | 4790 mm | 4640 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 2000 mm | 1470 mm |
| Wheelbase Size | 2850 mm | 2840 mm |
| Fuel Consumption Overall | 14.7 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 87 L | 60 L |
