2008 GMC Acadia vs. 2005 Opel Signum
To start off, 2008 GMC Acadia is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 3,600 cc (6 cylinders), 2008 GMC Acadia is equipped with a bigger engine. In terms of performance, 2008 GMC Acadia (275 HP @ 6600 RPM) has 151 more horse power than 2005 Opel Signum. (124 HP @ 3250 RPM). In normal driving conditions, 2008 GMC Acadia should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Acadia weights approximately 825 kg more than 2005 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 GMC Acadia is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2008 GMC Acadia 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 Acadia (340 Nm @ 3200 RPM) has 60 more torque (in Nm) than 2005 Opel Signum. (280 Nm @ 1500 RPM). This means 2008 GMC Acadia will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum.
Compare all specifications:
| 2008 GMC Acadia | 2005 Opel Signum | |
| Make | GMC | Opel |
| Model | Acadia | Signum |
| Year Released | 2008 | 2005 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3600 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 275 HP | 124 HP |
| Engine RPM | 6600 RPM | 3250 RPM |
| Torque | 340 Nm | 280 Nm |
| Torque RPM | 3200 RPM | 1500 RPM |
| Engine Compression Ratio | 10.2:1 | 18.5:1 |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 7 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2435 kg | 1610 kg |
| Vehicle Length | 5100 mm | 4640 mm |
| Vehicle Width | 1990 mm | 1800 mm |
| Vehicle Height | 1780 mm | 1470 mm |
| Wheelbase Size | 3030 mm | 2710 mm |
| Fuel Consumption Overall | 13.1 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 83 L | 60 L |
