2009 Audi R8 vs. 2006 Audi A4
To start off, 2009 Audi R8 is newer by 3 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 4,163 cc (8 cylinders), 2009 Audi R8 is equipped with a bigger engine. In terms of performance, 2009 Audi R8 (414 HP @ 7800 RPM) has 162 more horse power than 2006 Audi A4. (252 HP @ 6500 RPM). In normal driving conditions, 2009 Audi R8 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 36 kg more than 2009 Audi R8.
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, 2009 Audi R8 (430 Nm @ 4500 RPM) has 100 more torque (in Nm) than 2006 Audi A4. (330 Nm @ 3250 RPM). This means 2009 Audi R8 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2009 Audi R8 | 2006 Audi A4 | |
| Make | Audi | Audi |
| Model | R8 | A4 |
| Year Released | 2009 | 2006 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Middle | Front |
| Engine Size | 4163 cc | 3123 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 252 HP |
| Engine RPM | 7800 RPM | 6500 RPM |
| Torque | 430 Nm | 330 Nm |
| Torque RPM | 4500 RPM | 3250 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 92.8 mm |
| Engine Compression Ratio | 12.5:1 | 12.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 301 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 6.6 seconds |
| Drive Type | AWD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1560 kg | 1596 kg |
| Vehicle Length | 4440 mm | 4590 mm |
| Vehicle Width | 1910 mm | 1780 mm |
| Vehicle Height | 1260 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2650 mm |
| Fuel Consumption Overall | 14.6 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 75 L | 70 L |
