2005 Audi A6 vs. 2008 Opel Astra
To start off, 2008 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 1,781 cc (4 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Opel Astra (178 HP @ 5500 RPM) has 30 more horse power than 2005 Audi A6. (148 HP @ 5700 RPM) In normal driving conditions, 2008 Opel Astra should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 105 kg more than 2008 Opel Astra.
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, 2008 Opel Astra (230 Nm @ 1950 RPM) has 20 more torque (in Nm) than 2005 Audi A6. (210 Nm @ 1750 RPM). This means 2008 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 2008 Opel Astra | |
| Make | Audi | Opel |
| Model | A6 | Astra |
| Year Released | 2005 | 2008 |
| Body Type | Station Wagon | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 148 HP | 178 HP |
| Engine RPM | 5700 RPM | 5500 RPM |
| Torque | 210 Nm | 230 Nm |
| Torque RPM | 1750 RPM | 1950 RPM |
| Engine Compression Ratio | 10.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 209 km/hour | 221 km/hour |
| Acceleration 0-100mph | 9.9 seconds | 8.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1490 kg | 1385 kg |
| Vehicle Length | 4800 mm | 4300 mm |
| Vehicle Width | 1820 mm | 1760 mm |
| Vehicle Height | 1460 mm | 1440 mm |
| Wheelbase Size | 2770 mm | 2620 mm |
| Fuel Consumption Overall | 8.5 L/100km | 7.9 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
