2005 Buick Rainier vs. 2003 Opel Omega
To start off, 2005 Buick Rainier is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Opel Omega. In addition, the cost of maintenance, including insurance, on 2003 Opel Omega would be higher. At 4,163 cc (6 cylinders), 2005 Buick Rainier is equipped with a bigger engine. In terms of performance, 2005 Buick Rainier (276 HP @ 5200 RPM) has 134 more horse power than 2003 Opel Omega. (142 HP @ 5400 RPM). In normal driving conditions, 2005 Buick Rainier should accelerate faster than 2003 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2005 Buick Rainier weights approximately 339 kg more than 2003 Opel Omega. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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 Buick Rainier (387 Nm) has 178 more torque (in Nm) than 2003 Opel Omega. (209 Nm). This means 2005 Buick Rainier will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Omega.
Compare all specifications:
| 2005 Buick Rainier | 2003 Opel Omega | |
| Make | Buick | Opel |
| Model | Rainier | Omega |
| Year Released | 2005 | 2003 |
| Engine Position | Front | Middle |
| Engine Size | 4163 cc | 2198 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 276 HP | 142 HP |
| Engine RPM | 5200 RPM | 5400 RPM |
| Torque | 387 Nm | 209 Nm |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 102 mm | 94.6 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2004 kg | 1665 kg |
| Vehicle Length | 4920 mm | 4900 mm |
| Vehicle Width | 1920 mm | 1780 mm |
| Vehicle Height | 1900 mm | 1510 mm |
| Wheelbase Size | 2900 mm | 2740 mm |
| Fuel Tank Capacity | 83 L | 75 L |
