2009 Audi A8 vs. 2009 BMW 635
To start off, both 2009 Audi A8 and 2009 BMW 635 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,936 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 BMW 635 (282 HP @ 4400 RPM) has 11 more horse power than 2009 Audi A8. (271 HP @ 3750 RPM) In normal driving conditions, 2009 BMW 635 should accelerate faster than 2009 Audi A8.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 635. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Audi A8 (650 Nm @ 1800 RPM) has 70 more torque (in Nm) than 2009 BMW 635. (580 Nm @ 1750 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 635.
Compare all specifications:
| 2009 Audi A8 | 2009 BMW 635 | |
| Make | Audi | BMW |
| Model | A8 | 635 |
| Year Released | 2009 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3936 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 271 HP | 282 HP |
| Engine RPM | 3750 RPM | 4400 RPM |
| Torque | 650 Nm | 580 Nm |
| Torque RPM | 1800 RPM | 1750 RPM |
| Engine Compression Ratio | 18.0:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 245 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.7 seconds | 6.6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5060 mm | 4830 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1380 mm |
| Wheelbase Size | 2950 mm | 2790 mm |
| Fuel Consumption Overall | 9.7 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
