2003 Mercedes-Benz S vs. 2005 Opel Omega
To start off, 2005 Opel Omega is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Mercedes-Benz S. In addition, the cost of maintenance, including insurance, on 2003 Mercedes-Benz S would be higher. At 4,266 cc (8 cylinders), 2003 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2003 Mercedes-Benz S (275 HP @ 5750 RPM) has 129 more horse power than 2005 Opel Omega. (146 HP @ 4000 RPM). In normal driving conditions, 2003 Mercedes-Benz S should accelerate faster than 2005 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mercedes-Benz S weights approximately 270 kg more than 2005 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, 2003 Mercedes-Benz S (400 Nm @ 3000 RPM) has 197 more torque (in Nm) than 2005 Opel Omega. (203 Nm @ 4000 RPM). This means 2003 Mercedes-Benz S will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Omega.
Compare all specifications:
| 2003 Mercedes-Benz S | 2005 Opel Omega | |
| Make | Mercedes-Benz | Opel |
| Model | S | Omega |
| Year Released | 2003 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 4266 cc | 2198 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 3 valves | 4 valves |
| Horse Power | 275 HP | 146 HP |
| Engine RPM | 5750 RPM | 4000 RPM |
| Torque | 400 Nm | 203 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Bore Size | 89.9 mm | 86 mm |
| Engine Stroke Size | 84 mm | 94.6 mm |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Top Speed | 250 km/hour | 210 km/hour |
| Acceleration 0-100mph | 7.4 seconds | 10.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1875 kg | 1605 kg |
| Vehicle Length | 5050 mm | 4900 mm |
| Vehicle Width | 1860 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1460 mm |
| Wheelbase Size | 3090 mm | 2840 mm |
| Fuel Consumption Overall | 10.9 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 88 L | 75 L |
