2004 Audi S4 vs. 2006 Opel Astra
To start off, 2006 Opel Astra is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Audi S4. In addition, the cost of maintenance, including insurance, on 2004 Audi S4 would be higher. At 4,170 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (339 HP @ 7000 RPM) has 250 more horse power than 2006 Opel Astra. (89 HP @ 4000 RPM). In normal driving conditions, 2004 Audi S4 should accelerate faster than 2006 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi S4 weights approximately 425 kg more than 2006 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Audi S4 (410 Nm @ 3500 RPM) has 209 more torque (in Nm) than 2006 Opel Astra. (201 Nm @ 1750 RPM). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2006 Opel Astra.
Compare all specifications:
| 2004 Audi S4 | 2006 Opel Astra | |
| Make | Audi | Opel |
| Model | S4 | Astra |
| Year Released | 2004 | 2006 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 1248 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 339 HP | 89 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 410 Nm | 201 Nm |
| Torque RPM | 3500 RPM | 1750 RPM |
| Engine Bore Size | 84.5 mm | 69.6 mm |
| Engine Stroke Size | 92.8 mm | 82 mm |
| Top Speed | 250 km/hour | 174 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 13.6 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1755 kg | 1330 kg |
| Vehicle Length | 4590 mm | 4300 mm |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2430 mm | 2620 mm |
| Fuel Consumption Highway | 9.1 L/100km | 4 L/100km |
| Fuel Consumption Overall | 12.3 L/100km | 4.8 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
