2006 Audi S4 vs. 2008 Opel Astra
To start off, 2008 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Audi S4. In addition, the cost of maintenance, including insurance, on 2006 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 7000 RPM) has 217 more horse power than 2008 Opel Astra. (123 HP @ 4000 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 2008 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 135 kg more than 2008 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 130 more torque (in Nm) than 2008 Opel Astra. (280 Nm @ 2000 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Astra. 2008 Opel Astra has automatic transmission and 2006 Audi S4 has manual transmission. 2006 Audi S4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Opel Astra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Audi S4 | 2008 Opel Astra | |
| Make | Audi | Opel |
| Model | S4 | Astra |
| Year Released | 2006 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1796 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 123 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 410 Nm | 280 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Compression Ratio | 11.0:1 | 17.5:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1530 kg | 1395 kg |
| Vehicle Length | 4590 mm | 4260 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
| Fuel Consumption Overall | 13.8 L/100km | 6 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
