2008 Audi A4 vs. 2007 Opel Astra
To start off, 2008 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Opel Astra. In addition, the cost of maintenance, including insurance, on 2007 Opel Astra would be higher. At 1,796 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2008 Audi A4 (161 HP @ 5700 RPM) has 39 more horse power than 2007 Opel Astra. (122 HP @ 5600 RPM). In normal driving conditions, 2008 Audi A4 should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A4 weights approximately 274 kg more than 2007 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, 2008 Audi A4 (225 Nm @ 1950 RPM) has 55 more torque (in Nm) than 2007 Opel Astra. (170 Nm @ 3800 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2008 Audi A4 | 2007 Opel Astra | |
| Make | Audi | Opel |
| Model | A4 | Astra |
| Year Released | 2008 | 2007 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 161 HP | 122 HP |
| Engine RPM | 5700 RPM | 5600 RPM |
| Torque | 225 Nm | 170 Nm |
| Torque RPM | 1950 RPM | 3800 RPM |
| Engine Bore Size | 81.1 mm | 80.5 mm |
| Engine Stroke Size | 86.4 mm | 88.2 mm |
| Engine Compression Ratio | 9.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 9.4 seconds | 10.7 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1540 kg | 1266 kg |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1400 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2620 mm |
| Fuel Consumption Overall | 8.5 L/100km | 7.7 L/100km |
| Fuel Tank Capacity | 70 L | 52 L |
