2009 Audi A8 vs. 2007 BMW 645
To start off, 2009 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 645. In addition, the cost of maintenance, including insurance, on 2007 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2007 BMW 645 is equipped with a bigger engine. In terms of performance, 2007 BMW 645 (328 HP @ 6100 RPM) has 121 more horse power than 2009 Audi A8. (207 HP @ 5500 RPM) In normal driving conditions, 2007 BMW 645 should accelerate faster than 2009 Audi A8.
Because 2007 BMW 645 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2009 Audi A8, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 BMW 645 (450 Nm @ 3600 RPM) has 170 more torque (in Nm) than 2009 Audi A8. (280 Nm @ 3000 RPM). This means 2007 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
2009 Audi A8 | 2007 BMW 645 | |
Make | Audi | BMW |
Model | A8 | 645 |
Year Released | 2009 | 2007 |
Body Type | Sedan | Coupe |
Engine Position | Front | Front |
Engine Size | 2772 cc | 4398 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 207 HP | 328 HP |
Engine RPM | 5500 RPM | 6100 RPM |
Torque | 280 Nm | 450 Nm |
Torque RPM | 3000 RPM | 3600 RPM |
Engine Compression Ratio | 12.5:1 | 10.0:1 |
Fuel Type | Gasoline - Premium | Gasoline - Premium |
Top Speed | 238 km/hour | 245 km/hour |
Acceleration 0-100mph | 8 seconds | 5.6 seconds |
Drive Type | Front | Rear |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 4 doors | 2 doors |
Vehicle Weight | 1690 kg | 1690 kg |
Vehicle Length | 5070 mm | 4830 mm |
Vehicle Width | 1900 mm | 1860 mm |
Vehicle Height | 1450 mm | 1380 mm |
Wheelbase Size | 2950 mm | 2790 mm |
Fuel Consumption Overall | 8.3 L/100km | 11.8 L/100km |
Fuel Tank Capacity | 90 L | 70 L |