2005 Audi A8 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 8 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 4,395 cc (8 cylinders), 2013 BMW 6 series is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (437 HP @ 5500 RPM) has 115 more horse power than 2005 Audi A8. (322 HP @ 3750 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 64 kg more than 2005 Audi A8. 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, 2013 BMW 6 series (651 Nm @ 4500 RPM) has 1 more torque (in Nm) than 2005 Audi A8. (650 Nm @ 1600 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8.
Compare all specifications:
| 2005 Audi A8 | 2013 BMW 6 series | |
| Make | Audi | BMW |
| Model | A8 | 6 series |
| Year Released | 2005 | 2013 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4134 cc | 4395 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 322 HP | 437 HP |
| Engine RPM | 3750 RPM | 5500 RPM |
| Torque | 650 Nm | 651 Nm |
| Torque RPM | 1600 RPM | 4500 RPM |
| Engine Bore Size | 83 mm | 89 mm |
| Engine Stroke Size | 95.5 mm | 89 mm |
| Engine Compression Ratio | 16.5:1 | 10.0 :1 |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.2 seconds | 4.5 seconds |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 2009 kg |
| Vehicle Length | 5070 mm | 5009 mm |
| Vehicle Width | 1900 mm | 2081 mm |
| Vehicle Height | 1450 mm | 1392 mm |
| Wheelbase Size | 2950 mm | 2968 mm |
| Fuel Tank Capacity | 90 L | 70 L |
