2005 Audi A4 vs. 2005 Audi A8
To start off, both 2005 Audi A4 and 2005 Audi A8 were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,697 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (271 HP @ 6000 RPM) has 54 more horse power than 2005 Audi A4. (217 HP @ 6300 RPM) In normal driving conditions, 2005 Audi A8 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 110 kg more than 2005 Audi A8.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A4. In wet, icy, snow, or gravel driving conditions, 2005 Audi A8 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, 2005 Audi A8 (360 Nm @ 3250 RPM) has 60 more torque (in Nm) than 2005 Audi A4. (300 Nm @ 3200 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2005 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 2005 | 2005 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2983 cc | 3697 cc |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 217 HP | 271 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 300 Nm | 360 Nm |
| Torque RPM | 3200 RPM | 3250 RPM |
| Top Speed | 229 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.8 seconds | 8.9 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1770 kg |
| Wheelbase Size | 2850 mm | 2890 mm |
| Fuel Consumption Overall | 9.7 L/100km | 11.7 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
