2008 Audi A8 vs. 2009 BMW 523
To start off, 2009 BMW 523 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A8. In addition, the cost of maintenance, including insurance, on 2008 Audi A8 would be higher. At 4,163 cc (8 cylinders), 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (350 HP @ 6800 RPM) has 175 more horse power than 2009 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2009 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 395 kg more than 2009 BMW 523. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 523. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Audi A8 (442 Nm @ 3500 RPM) has 212 more torque (in Nm) than 2009 BMW 523. (230 Nm @ 3500 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 523.
Compare all specifications:
| 2008 Audi A8 | 2009 BMW 523 | |
| Make | Audi | BMW |
| Model | A8 | 523 |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 175 HP |
| Engine RPM | 6800 RPM | 5800 RPM |
| Torque | 442 Nm | 230 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 82.1 mm |
| Engine Stroke Size | 92.8 mm | 78.8 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1960 kg | 1565 kg |
| Vehicle Length | 5070 mm | 4850 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2890 mm |
| Fuel Consumption Overall | 13.1 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
