2004 Audi A8 vs. 2009 BMW 135
To start off, 2009 BMW 135 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 2,978 cc (6 cylinders), 2009 BMW 135 is equipped with a bigger engine. In terms of performance, 2009 BMW 135 (302 HP @ 5800 RPM) has 72 more horse power than 2004 Audi A8. (230 HP @ 4000 RPM) In normal driving conditions, 2009 BMW 135 should accelerate faster than 2004 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 305 kg more than 2009 BMW 135.
Because 2004 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 135. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Audi A8 (450 Nm @ 1400 RPM) has 50 more torque (in Nm) than 2009 BMW 135. (400 Nm @ 1300 RPM). This means 2004 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 135.
Compare all specifications:
| 2004 Audi A8 | 2009 BMW 135 | |
| Make | Audi | BMW |
| Model | A8 | 135 |
| Year Released | 2004 | 2009 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2966 cc | 2978 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 302 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 450 Nm | 400 Nm |
| Torque RPM | 1400 RPM | 1300 RPM |
| Engine Bore Size | 83 mm | 84 mm |
| Engine Stroke Size | 91.4 mm | 89.6 mm |
| Engine Compression Ratio | 17.0:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 7.8 seconds | 5.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1830 kg | 1525 kg |
| Vehicle Length | 5060 mm | 4370 mm |
| Vehicle Width | 1900 mm | 1420 mm |
| Vehicle Height | 1450 mm | 1760 mm |
| Wheelbase Size | 2950 mm | 2670 mm |
| Fuel Consumption Overall | 8.4 L/100km | 10.5 L/100km |
| Fuel Tank Capacity | 90 L | 53 L |
