2008 Audi R8 vs. 2005 Audi S6
To start off, 2008 Audi R8 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi S6. In addition, the cost of maintenance, including insurance, on 2005 Audi S6 would be higher. At 4,172 cc (8 cylinders), 2005 Audi S6 is equipped with a bigger engine. In terms of performance, 2008 Audi R8 (414 HP @ 7800 RPM) has 79 more horse power than 2005 Audi S6. (335 HP @ 7000 RPM). In normal driving conditions, 2008 Audi R8 should accelerate faster than 2005 Audi S6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S6 weights approximately 255 kg more than 2008 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, 2008 Audi R8 (431 Nm @ 4500 RPM) has 11 more torque (in Nm) than 2005 Audi S6. (420 Nm @ 3400 RPM). This means 2008 Audi R8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S6. 2005 Audi S6 has automatic transmission and 2008 Audi R8 has manual transmission. 2008 Audi R8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi S6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi R8 | 2005 Audi S6 | |
| Make | Audi | Audi |
| Model | R8 | S6 |
| Year Released | 2008 | 2005 |
| Body Type | Coupe | Station Wagon |
| Engine Position | Middle | Front |
| Engine Size | 4163 cc | 4172 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 414 HP | 335 HP |
| Engine RPM | 7800 RPM | 7000 RPM |
| Torque | 431 Nm | 420 Nm |
| Torque RPM | 4500 RPM | 3400 RPM |
| Engine Bore Size | 84.5 mm | 84.5 mm |
| Engine Stroke Size | 92.8 mm | 93 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 301 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.6 seconds | 6.8 seconds |
| Drive Type | AWD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1560 kg | 1815 kg |
| Vehicle Length | 4440 mm | 4840 mm |
| Vehicle Width | 1910 mm | 1860 mm |
| Vehicle Height | 1260 mm | 1450 mm |
| Wheelbase Size | 2660 mm | 2660 mm |
| Fuel Consumption Overall | 14.6 L/100km | 14.5 L/100km |
| Fuel Tank Capacity | 75 L | 82 L |
