1999 Opel Omega vs. 2006 Audi S4
To start off, 2006 Audi S4 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 5,663 cc (8 cylinders), 1999 Opel Omega is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (339 HP @ 7000 RPM) has 28 more horse power than 1999 Opel Omega. (311 HP @ 5600 RPM) In normal driving conditions, 2006 Audi S4 should accelerate faster than 1999 Opel Omega. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Omega weights approximately 375 kg more than 2006 Audi S4.
Because 2006 Audi S4 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 Audi S4 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, 1999 Opel Omega (459 Nm @ 4400 RPM) has 48 more torque (in Nm) than 2006 Audi S4. (411 Nm @ 3500 RPM). This means 1999 Opel Omega will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4.
Compare all specifications:
| 1999 Opel Omega | 2006 Audi S4 | |
| Make | Opel | Audi |
| Model | Omega | S4 |
| Year Released | 1999 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 5663 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 311 HP | 339 HP |
| Engine RPM | 5600 RPM | 7000 RPM |
| Torque | 459 Nm | 411 Nm |
| Torque RPM | 4400 RPM | 3500 RPM |
| Engine Bore Size | 99 mm | 84.5 mm |
| Engine Stroke Size | 92 mm | 92.8 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Vehicle Weight | 1650 kg | 1275 kg |
| Vehicle Length | 4900 mm | 4580 mm |
| Vehicle Width | 1790 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1450 mm |
| Wheelbase Size | 2740 mm | 2660 mm |
