2006 Audi A4 vs. 2011 Audi A8
To start off, 2011 Audi A8 is newer by 5 year(s). Which means there will be less support and parts availability for 2006 Audi A4. In addition, the cost of maintenance, including insurance, on 2006 Audi A4 would be higher. At 4,200 cc (8 cylinders), 2011 Audi A8 is equipped with a bigger engine. In terms of performance, 2011 Audi A8 (372 HP @ 6800 RPM) has 117 more horse power than 2006 Audi A4. (255 HP @ 6500 RPM) In normal driving conditions, 2011 Audi A8 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2011 Audi A8 weights approximately 140 kg more than 2006 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2011 Audi A8 (444 Nm @ 3500 RPM) has 114 more torque (in Nm) than 2006 Audi A4. (330 Nm @ 3250 RPM). This means 2011 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2006 Audi A4 | 2011 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 2006 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 4200 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 255 HP | 372 HP |
| Engine RPM | 6500 RPM | 6800 RPM |
| Torque | 330 Nm | 444 Nm |
| Torque RPM | 3250 RPM | 3500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | AWD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1880 kg | 2020 kg |
| Vehicle Length | 4590 mm | 5268 mm |
| Vehicle Width | 1780 mm | 1948 mm |
| Vehicle Height | 1430 mm | 1471 mm |
| Wheelbase Size | 2660 mm | 3122 mm |
| Fuel Consumption | 8.7 L/100km | 8.7 L/100km |
| Fuel Consumption City | 13.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
