2007 GMC Sierra vs. 2006 Opel Signum
To start off, 2007 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Opel Signum. In addition, the cost of maintenance, including insurance, on 2006 Opel Signum would be higher. At 5,999 cc (8 cylinders), 2007 GMC Sierra is equipped with a bigger engine. In terms of performance, 2007 GMC Sierra (312 HP @ 4400 RPM) has 137 more horse power than 2006 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2007 GMC Sierra should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 GMC Sierra weights approximately 1120 kg more than 2006 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2006 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2007 GMC Sierra 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 GMC Sierra (506 Nm @ 4400 RPM) has 136 more torque (in Nm) than 2006 Opel Signum. (370 Nm @ 1900 RPM). This means 2007 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Signum.
Compare all specifications:
| 2007 GMC Sierra | 2006 Opel Signum | |
| Make | GMC | Opel |
| Model | Sierra | Signum |
| Year Released | 2007 | 2006 |
| Body Type | Pickup | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 2958 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 312 HP | 175 HP |
| Engine RPM | 4400 RPM | 4000 RPM |
| Torque | 506 Nm | 370 Nm |
| Torque RPM | 4400 RPM | 1900 RPM |
| Engine Bore Size | 102 mm | 87.5 mm |
| Engine Stroke Size | 92 mm | 82 mm |
| Fuel Type | Gasoline | Diesel |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2790 kg | 1670 kg |
| Vehicle Length | 6340 mm | 4640 mm |
| Vehicle Width | 2440 mm | 1800 mm |
| Vehicle Height | 1940 mm | 1470 mm |
| Wheelbase Size | 4010 mm | 2840 mm |
| Fuel Consumption Overall | 13.1 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 129 L | 60 L |
