2005 Audi S4 vs. 2004 Opel Astra
To start off, 2005 Audi S4 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Opel Astra. In addition, the cost of maintenance, including insurance, on 2004 Opel Astra would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 4000 RPM) has 215 more horse power than 2004 Opel Astra. (125 HP @ 5600 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2004 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 445 kg more than 2004 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S4 (410 Nm) has 243 more torque (in Nm) than 2004 Opel Astra. (167 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Astra.
Compare all specifications:
| 2005 Audi S4 | 2004 Opel Astra | |
| Make | Audi | Opel |
| Model | S4 | Astra |
| Year Released | 2005 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1796 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 125 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 410 Nm | 167 Nm |
| Engine Bore Size | 85 mm | 80.5 mm |
| Engine Stroke Size | 93 mm | 88.2 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1770 kg | 1325 kg |
| Vehicle Length | 4550 mm | 4520 mm |
| Vehicle Width | 1770 mm | 1800 mm |
| Vehicle Height | 1430 mm | 1510 mm |
| Wheelbase Size | 2770 mm | 2700 mm |
| Fuel Consumption Highway | 9.8 L/100km | 6.4 L/100km |
| Fuel Consumption City | 13.1 L/100km | 10.7 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 8 L/100km |
| Fuel Tank Capacity | 66 L | 52 L |
