2006 GMC Sierra vs. 1999 Opel Omega
To start off, 2006 GMC Sierra is newer by 7 year(s). Which means there will be less support and parts availability for 1999 Opel Omega. In addition, the cost of maintenance, including insurance, on 1999 Opel Omega would be higher. At 4,293 cc (6 cylinders), 2006 GMC Sierra is equipped with a bigger engine. In terms of performance, 2006 GMC Sierra (195 HP @ 4600 RPM) has 53 more horse power than 1999 Opel Omega. (142 HP @ 5400 RPM). In normal driving conditions, 2006 GMC Sierra should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2006 GMC Sierra weights approximately 584 kg more than 1999 Opel Omega. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1999 Opel Omega. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 GMC Sierra (353 Nm @ 2800 RPM) has 144 more torque (in Nm) than 1999 Opel Omega. (209 Nm @ 4000 RPM). This means 2006 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Omega.
Compare all specifications:
| 2006 GMC Sierra | 1999 Opel Omega | |
| Make | GMC | Opel |
| Model | Sierra | Omega |
| Year Released | 2006 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 4293 cc | 2196 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 195 HP | 142 HP |
| Engine RPM | 4600 RPM | 5400 RPM |
| Torque | 353 Nm | 209 Nm |
| Torque RPM | 2800 RPM | 4000 RPM |
| Engine Compression Ratio | 9.5:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 2317 kg | 1733 kg |
| Vehicle Length | 5710 mm | 4900 mm |
| Vehicle Width | 2000 mm | 1780 mm |
| Vehicle Height | 1810 mm | 1460 mm |
| Wheelbase Size | 3380 mm | 2850 mm |
| Fuel Consumption Overall | 13.1 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 129 L | 75 L |
