2008 Audi A4 vs. 2008 Audi A8
To start off, both 2008 Audi A4 and 2008 Audi A8 were released in the same year (2008). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,772 cc (6 cylinders), 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (207 HP @ 5500 RPM) has 93 more horse power than 2008 Audi A4. (114 HP @ 4000 RPM) In normal driving conditions, 2008 Audi A8 should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 415 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.
Because 2008 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Audi A8. In wet, icy, snow, or gravel driving conditions, 2008 Audi A4 will offer significantly more control. 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 (285 Nm @ 1900 RPM) has 5 more torque (in Nm) than 2008 Audi A8. (280 Nm @ 3000 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A8.
Compare all specifications:
| 2008 Audi A4 | 2008 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 2008 | 2008 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1896 cc | 2772 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 114 HP | 207 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 285 Nm | 280 Nm |
| Torque RPM | 1900 RPM | 3000 RPM |
| Engine Bore Size | 79.6 mm | 84.5 mm |
| Engine Stroke Size | 95.5 mm | 82.4 mm |
| Engine Compression Ratio | 19.0:1 | 12.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 10.6 seconds | 8 seconds |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1275 kg | 1690 kg |
| Vehicle Length | 4550 mm | 5070 mm |
| Vehicle Width | 1780 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2660 mm | 2950 mm |
| Fuel Consumption Overall | 6.1 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
