2009 Audi RS6 vs. 2008 Audi A4
To start off, 2009 Audi RS6 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A4. In addition, the cost of maintenance, including insurance, on 2008 Audi A4 would be higher. At 4,991 cc (10 cylinders), 2009 Audi RS6 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS6 weights approximately 428 kg more than 2008 Audi A4.
Because 2009 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Audi A4. In wet, icy, snow, or gravel driving conditions, 2009 Audi RS6 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, 2009 Audi RS6 (650 Nm @ 1500 RPM) has 370 more torque (in Nm) than 2008 Audi A4. (280 Nm @ 1800 RPM). This means 2009 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4. 2009 Audi RS6 has automatic transmission and 2008 Audi A4 has manual transmission. 2008 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi RS6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi RS6 | 2008 Audi A4 | |
| Make | Audi | Audi |
| Model | RS6 | A4 |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4991 cc | 1982 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 572 HP | 0 HP |
| Torque | 650 Nm | 280 Nm |
| Torque RPM | 1500 RPM | 1800 RPM |
| Engine Bore Size | 84.5 mm | 82.5 mm |
| Engine Stroke Size | 89 mm | 92.8 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 238 km/hour |
| Acceleration 0-100mph | 4.6 seconds | 7.9 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 2028 kg | 1600 kg |
| Vehicle Length | 4930 mm | 4580 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1400 mm |
| Wheelbase Size | 2850 mm | 2660 mm |
| Fuel Consumption Overall | 6.8 L/100km | 8.3 L/100km |
| Fuel Tank Capacity | 80 L | 70 L |
