2007 Audi A8 vs. 2007 Audi A4
To start off, both 2007 Audi A8 and 2007 Audi A4 were released in the same year (2007). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,134 cc (8 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (322 HP @ 3750 RPM) has 105 more horse power than 2007 Audi A4. (217 HP @ 5900 RPM). In normal driving conditions, 2007 Audi A8 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A8 weights approximately 350 kg more than 2007 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 (650 Nm @ 1600 RPM) has 350 more torque (in Nm) than 2007 Audi A4. (300 Nm @ 2200 RPM). This means 2007 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A8 | 2007 Audi A4 | |
| Make | Audi | Audi |
| Model | A8 | A4 |
| Year Released | 2007 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4134 cc | 1984 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 217 HP |
| Engine RPM | 3750 RPM | 5900 RPM |
| Torque | 650 Nm | 300 Nm |
| Torque RPM | 1600 RPM | 2200 RPM |
| Engine Compression Ratio | 16.5:1 | 10.5:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 245 km/hour | 239 km/hour |
| Acceleration 0-100mph | 5.9 seconds | 6.9 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 | 1945 kg | 1595 kg |
| Vehicle Length | 5070 mm | 4550 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2950 mm | 2660 mm |
| Fuel Consumption Overall | 9.4 L/100km | 9 L/100km |
| Fuel Tank Capacity | 90 L | 63 L |
