2005 GMC Sierra vs. 2002 Opel Omega
To start off, 2005 GMC Sierra is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Opel Omega. In addition, the cost of maintenance, including insurance, on 2002 Opel Omega would be higher. At 4,802 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (285 HP) has 143 more horse power than 2002 Opel Omega. (142 HP). In normal driving conditions, 2005 GMC Sierra should accelerate faster than 2002 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 652 kg more than 2002 Opel Omega. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 2002 Opel Omega. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 GMC Sierra (400 Nm) has 191 more torque (in Nm) than 2002 Opel Omega. (209 Nm). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2002 Opel Omega. 2002 Opel Omega has automatic transmission and 2005 GMC Sierra has manual transmission. 2005 GMC Sierra will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2002 Opel Omega will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 GMC Sierra | 2002 Opel Omega | |
| Make | GMC | Opel |
| Model | Sierra | Omega |
| Year Released | 2005 | 2002 |
| Engine Position | Front | Middle |
| Engine Size | 4802 cc | 2197 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 285 HP | 142 HP |
| Torque | 400 Nm | 209 Nm |
| Engine Bore Size | 96.1 mm | 86 mm |
| Engine Stroke Size | 83 mm | 94.6 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 3 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 2317 kg | 1665 kg |
| Vehicle Length | 5710 mm | 4900 mm |
| Vehicle Width | 2000 mm | 1790 mm |
| Vehicle Height | 1880 mm | 1510 mm |
| Wheelbase Size | 3380 mm | 2740 mm |
| Fuel Tank Capacity | 129 L | 75 L |
