2002 GMC Sierra vs. 2005 Opel Vectra
To start off, 2005 Opel Vectra is newer by 3 year(s). Which means there will be less support and parts availability for 2002 GMC Sierra. In addition, the cost of maintenance, including insurance, on 2002 GMC Sierra would be higher. At 5,967 cc (8 cylinders), 2002 GMC Sierra is equipped with a bigger engine. In terms of performance, 2002 GMC Sierra (321 HP @ 5000 RPM) has 199 more horse power than 2005 Opel Vectra. (122 HP @ 5600 RPM). In normal driving conditions, 2002 GMC Sierra should accelerate faster than 2005 Opel Vectra. With that said, vehicle weight also plays an important factor in acceleration. 2002 GMC Sierra weights approximately 910 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 2002 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, 2002 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, 2002 GMC Sierra (371 Nm @ 4000 RPM) has 201 more torque (in Nm) than 2005 Opel Vectra. (170 Nm @ 3800 RPM). This means 2002 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Vectra. 2002 GMC Sierra has automatic transmission and 2005 Opel Vectra has manual transmission. 2005 Opel Vectra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2002 GMC Sierra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2002 GMC Sierra | 2005 Opel Vectra | |
| Make | GMC | Opel |
| Model | Sierra | Vectra |
| Year Released | 2002 | 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 | 122 HP |
| Engine RPM | 5000 RPM | 5600 RPM |
| Torque | 371 Nm | 170 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 6 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2270 kg | 1360 kg |
| Vehicle Length | 5790 mm | 4500 mm |
| Vehicle Width | 2000 mm | 1710 mm |
| Vehicle Height | 1850 mm | 1430 mm |
| Wheelbase Size | 3650 mm | 2450 mm |
| Fuel Tank Capacity | 117 L | 60 L |
