2005 GMC Sierra vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2005 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2005 GMC Sierra would be higher. At 5,965 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (300 HP) has 182 more horse power than 2006 Opel Signum. (118 HP). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 954 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 2005 GMC Sierra is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 GMC Sierra. However, in wet, icy, snow, or gravel driving conditions, 2006 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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 GMC Sierra (489 Nm) has 208 more torque (in Nm) than 2006 Opel Signum. (281 Nm). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Signum.
Compare all specifications:
| 2005 GMC Sierra | 2006 Opel Signum | |
| Make | GMC | Opel |
| Model | Sierra | Signum |
| Year Released | 2005 | 2006 |
| Body Type | Pickup | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5965 cc | 1910 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 300 HP | 118 HP |
| Torque | 489 Nm | 281 Nm |
| Engine Bore Size | 102 mm | 82 mm |
| Engine Stroke Size | 92 mm | 90.4 mm |
| Drive Type | Rear | Front |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2569 kg | 1615 kg |
| Vehicle Length | 6270 mm | 4640 mm |
| Vehicle Width | 2030 mm | 1800 mm |
| Vehicle Height | 1940 mm | 1470 mm |
| Wheelbase Size | 4010 mm | 2840 mm |
| Fuel Tank Capacity | 129 L | 60 L |
