2007 Audi A4 vs. 2008 Audi A8
To start off, 2008 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 3,123 cc (6 cylinders), 2007 Audi A4 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (252 HP @ 6500 RPM) has 21 more horse power than 2008 Audi A8. (231 HP @ 4000 RPM). In normal driving conditions, 2007 Audi A4 should accelerate faster than 2008 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 250 kg more than 2007 Audi A4.
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, 2008 Audi A8 (450 Nm @ 1400 RPM) has 120 more torque (in Nm) than 2007 Audi A4. (330 Nm @ 3250 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2008 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 2007 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3123 cc | 2967 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 252 HP | 231 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 330 Nm | 450 Nm |
| Torque RPM | 3250 RPM | 1400 RPM |
| Engine Bore Size | 84.5 mm | 83 mm |
| Engine Stroke Size | 92.8 mm | 91.4 mm |
| Engine Compression Ratio | 12.5:1 | 17.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 250 km/hour | 243 km/hour |
| Acceleration 0-100mph | 6.9 seconds | 7.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1580 kg | 1830 kg |
| Vehicle Length | 4590 mm | 5060 mm |
| Vehicle Width | 1780 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2650 mm | 2950 mm |
| Fuel Consumption Overall | 10.7 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
