2004 GMC Sierra vs. 2005 Opel Vectra
To start off, 2005 Opel Vectra is newer by 1 year(s). Which means there will be less support and parts availability for 2004 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2004 GMC Sierra would be higher. At 5,967 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (321 HP @ 5000 RPM) has 201 more horse power than 2005 Opel Vectra. (120 HP @ 5400 RPM). In normal driving conditions, 2004 GMC Sierra should accelerate faster than 2005 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 800 kg more than 2005 Opel Vectra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Vectra. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 GMC Sierra (370 Nm @ 4000 RPM) has 203 more torque (in Nm) than 2005 Opel Vectra. (167 Nm @ 3800 RPM). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Vectra.
Compare all specifications:
| 2004 GMC Sierra | 2005 Opel Vectra | |
| Make | GMC | Opel |
| Model | Sierra | Vectra |
| Year Released | 2004 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 5967 cc | 1796 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 321 HP | 120 HP |
| Engine RPM | 5000 RPM | 5400 RPM |
| Torque | 370 Nm | 167 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 6 seats | 5 seats |
| Vehicle Weight | 2270 kg | 1470 kg |
| Vehicle Length | 5790 mm | 4830 mm |
| Vehicle Width | 2000 mm | 1800 mm |
| Vehicle Height | 1850 mm | 1510 mm |
