2008 GMC Sierra vs. 2003 Opel Vectra
To start off, 2008 GMC Sierra is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Opel Vectra. In addition, the cost of maintenance, including insurance, on 2003 Opel Vectra 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 201 more horse power than 2003 Opel Vectra. (152 HP @ 5600 RPM). In normal driving conditions, 2008 GMC Sierra should accelerate faster than 2003 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2008 GMC Sierra weights approximately 1114 kg more than 2003 Opel Vectra. 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 2003 Opel Vectra. 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 277 more torque (in Nm) than 2003 Opel Vectra. (229 Nm @ 3800 RPM). This means 2008 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Vectra. 2008 GMC Sierra has automatic transmission and 2003 Opel Vectra has manual transmission. 2003 Opel Vectra 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 | 2003 Opel Vectra | |
| Make | GMC | Opel |
| Model | Sierra | Vectra |
| Year Released | 2008 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 5999 cc | 2197 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 353 HP | 152 HP |
| Engine RPM | 5400 RPM | 5600 RPM |
| Torque | 506 Nm | 229 Nm |
| Torque RPM | 4400 RPM | 3800 RPM |
| 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 | 1550 kg |
| Vehicle Length | 5710 mm | 4830 mm |
| Vehicle Width | 2040 mm | 1800 mm |
| Vehicle Height | 1940 mm | 1510 mm |
| Wheelbase Size | 3380 mm | 2840 mm |
| Fuel Consumption Overall | 13.1 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 129 L | 60 L |
