2007 Hummer H3 vs. 2003 Opel Signum
To start off, 2007 Hummer H3 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 3,700 cc (5 cylinders), 2007 Hummer H3 is equipped with a bigger engine. In terms of performance, 2007 Hummer H3 (242 HP @ 5600 RPM) has 143 more horse power than 2003 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2007 Hummer H3 should accelerate faster than 2003 Opel Signum.
Because 2007 Hummer H3 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2007 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 Hummer H3 (329 Nm @ 4600 RPM) has 99 more torque (in Nm) than 2003 Opel Signum. (230 Nm @ 1500 RPM). This means 2007 Hummer H3 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2007 Hummer H3 | 2003 Opel Signum | |
| Make | Hummer | Opel |
| Model | H3 | Signum |
| Year Released | 2007 | 2003 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3700 cc | 1998 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 242 HP | 99 HP |
| Engine RPM | 5600 RPM | 3120 RPM |
| Torque | 329 Nm | 230 Nm |
| Torque RPM | 4600 RPM | 1500 RPM |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4750 mm | 4640 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1880 mm | 1470 mm |
| Wheelbase Size | 2850 mm | 2840 mm |
| Fuel Consumption Highway | 11.8 L/100km | 4.8 L/100km |
| Fuel Consumption City | 15.7 L/100km | 7.9 L/100km |
| Fuel Consumption Overall | 13.8 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 87 L | 60 L |
