2007 Audi A8 vs. 2012 BMW 640
To start off, 2012 BMW 640 is newer by 5 year(s). Which means there will be less support and parts availability for 2007 Audi A8. In addition, the cost of maintenance, including insurance, on 2007 Audi A8 would be higher. At 4,170 cc (8 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (329 HP @ 6500 RPM) has 11 more horse power than 2012 BMW 640. (318 HP @ 5800 RPM). In normal driving conditions, 2007 Audi A8 should accelerate faster than 2012 BMW 640. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW 640 weights approximately 45 kg more than 2007 Audi A8.
Because 2007 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2012 BMW 640. In wet, icy, snow, or gravel driving conditions, 2007 Audi A8 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, 2012 BMW 640 (450 Nm @ 1300 RPM) has 20 more torque (in Nm) than 2007 Audi A8. (430 Nm @ 3500 RPM). This means 2012 BMW 640 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A8.
Compare all specifications:
| 2007 Audi A8 | 2012 BMW 640 | |
| Make | Audi | BMW |
| Model | A8 | 640 |
| Year Released | 2007 | 2012 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 2979 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 329 HP | 318 HP |
| Engine RPM | 6500 RPM | 5800 RPM |
| Torque | 430 Nm | 450 Nm |
| Torque RPM | 3500 RPM | 1300 RPM |
| Engine Bore Size | 84.5 mm | 89.6 mm |
| Engine Stroke Size | 93 mm | 84 mm |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 5.4 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1780 kg | 1825 kg |
| Vehicle Length | 5060 mm | 5007 mm |
| Vehicle Width | 1900 mm | 1894 mm |
| Vehicle Height | 1450 mm | 1392 mm |
| Wheelbase Size | 2950 mm | 2968 mm |
| Fuel Consumption Overall | 8.8 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
