2009 BMW 523 vs. 2011 Audi R8
To start off, 2011 Audi R8 is newer by 2 year(s). Which means there will be less support and parts availability for 2009 BMW 523. In addition, the cost of maintenance, including insurance, on 2009 BMW 523 would be higher. At 4,200 cc (8 cylinders), 2011 Audi R8 is equipped with a bigger engine. In terms of performance, 2011 Audi R8 (420 HP @ 7800 RPM) has 245 more horse power than 2009 BMW 523. (175 HP @ 5800 RPM) In normal driving conditions, 2011 Audi R8 should accelerate faster than 2009 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2011 Audi R8 weights approximately 110 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 2011 Audi R8 is all wheel drive (AWD), it will have significant more traction and grip than 2009 BMW 523. In wet, icy, snow, or gravel driving conditions, 2011 Audi R8 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, 2011 Audi R8 (430 Nm @ 4500 RPM) has 200 more torque (in Nm) than 2009 BMW 523. (230 Nm @ 3500 RPM). This means 2011 Audi R8 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 523.
Compare all specifications:
| 2009 BMW 523 | 2011 Audi R8 | |
| Make | BMW | Audi |
| Model | 523 | R8 |
| Year Released | 2009 | 2011 |
| Engine Position | Front | Middle |
| Engine Size | 2497 cc | 4200 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 420 HP |
| Engine RPM | 5800 RPM | 7800 RPM |
| Torque | 230 Nm | 430 Nm |
| Torque RPM | 3500 RPM | 4500 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1525 kg | 1635 kg |
| Vehicle Width | 1470 mm | 1930 mm |
| Vehicle Height | 1850 mm | 1252 mm |
| Wheelbase Size | 2890 mm | 2649 mm |
| Fuel Tank Capacity | 70 L | 90 L |
