2004 Audi A4 vs. 2005 Opel Omega
To start off, 2005 Opel Omega is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 2,198 cc (4 cylinders), 2005 Opel Omega is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (170 HP @ 6500 RPM) has 24 more horse power than 2005 Opel Omega. (146 HP @ 4000 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 2005 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A4 weights approximately 45 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.
Because 2005 Opel Omega is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 Opel Omega. However, in wet, icy, snow, or gravel driving conditions, 2004 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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, 2004 Audi A4 (235 Nm) has 32 more torque (in Nm) than 2005 Opel Omega. (203 Nm). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Omega.
Compare all specifications:
| 2004 Audi A4 | 2005 Opel Omega | |
| Make | Audi | Opel |
| Model | A4 | Omega |
| Year Released | 2004 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1784 cc | 2198 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 170 HP | 146 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 235 Nm | 203 Nm |
| Engine Bore Size | 81 mm | 86 mm |
| Engine Stroke Size | 86 mm | 94.6 mm |
| Engine Compression Ratio | 9.3:1 | 10.5:1 |
| Drive Type | Front | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1650 kg | 1605 kg |
| Vehicle Length | 4580 mm | 4900 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1400 mm | 1460 mm |
| Wheelbase Size | 2580 mm | 2840 mm |
| Fuel Consumption Overall | 9.1 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 70 L | 75 L |
