2008 Audi A4 vs. 2007 Audi A8
To start off, 2008 Audi A4 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Audi A8. In addition, the cost of maintenance, including insurance, on 2007 Audi A8 would be higher. At 5,202 cc (10 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (444 HP @ 7000 RPM) has 244 more horse power than 2008 Audi A4. (200 HP @ 5100 RPM) In normal driving conditions, 2007 Audi A8 should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A8 weights approximately 765 kg more than 2008 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or 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, 2007 Audi A8 (540 Nm @ 3500 RPM) has 258 more torque (in Nm) than 2008 Audi A4. (282 Nm @ 1800 RPM). This means 2007 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4.
Compare all specifications:
| 2008 Audi A4 | 2007 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 2008 | 2007 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 5202 cc |
| Engine Cylinders | 4 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 200 HP | 444 HP |
| Engine RPM | 5100 RPM | 7000 RPM |
| Torque | 282 Nm | 540 Nm |
| Torque RPM | 1800 RPM | 3500 RPM |
| Engine Bore Size | 82.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 92.8 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1175 kg | 1940 kg |
| Vehicle Length | 4580 mm | 5070 mm |
| Vehicle Width | 1780 mm | 1900 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2950 mm |
| Fuel Consumption Overall | 9.4 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
