2008 GMC Sierra vs. 2004 Opel Signum
To start off, 2008 GMC Sierra is newer by 4 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 5,999 cc (8 cylinders), 2008 GMC Sierra is equipped with a bigger engine. In terms of performance, 2008 GMC Sierra (353 HP @ 5400 RPM) has 180 more horse power than 2004 Opel Signum. (173 HP @ 5500 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 1104 kg more than 2004 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2004 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 GMC Sierra (506 Nm @ 4400 RPM) has 241 more torque (in Nm) than 2004 Opel Signum. (265 Nm @ 2500 RPM). This means 2008 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum. 2008 GMC Sierra has automatic transmission and 2004 Opel Signum has manual transmission. 2004 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 GMC Sierra | 2004 Opel Signum | |
| Make | GMC | Opel |
| Model | Sierra | Signum |
| Year Released | 2008 | 2004 |
| Body Type | Pickup | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 353 HP | 173 HP |
| Engine RPM | 5400 RPM | 5500 RPM |
| Torque | 506 Nm | 265 Nm |
| Torque RPM | 4400 RPM | 2500 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 2664 kg | 1560 kg |
| Vehicle Length | 5710 mm | 4640 mm |
| Vehicle Width | 2040 mm | 1800 mm |
| Vehicle Height | 1940 mm | 1470 mm |
| Wheelbase Size | 3380 mm | 2840 mm |
| Fuel Consumption Overall | 13.1 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 129 L | 60 L |
