2009 Audi RS4 vs. 2009 BMW 650
To start off, both 2009 Audi RS4 and 2009 BMW 650 were released in the same year (2009). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,799 cc (8 cylinders), 2009 BMW 650 is equipped with a bigger engine. In terms of performance, 2009 Audi RS4 (414 HP @ 7800 RPM) has 53 more horse power than 2009 BMW 650. (361 HP @ 6300 RPM). In normal driving conditions, 2009 Audi RS4 should accelerate faster than 2009 BMW 650. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi RS4 weights approximately 320 kg more than 2009 BMW 650. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 650. In wet, icy, snow, or gravel driving conditions, 2009 Audi RS4 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 BMW 650 (488 Nm @ 3400 RPM) has 58 more torque (in Nm) than 2009 Audi RS4. (430 Nm @ 5500 RPM). This means 2009 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi RS4.
Compare all specifications:
| 2009 Audi RS4 | 2009 BMW 650 | |
| Make | Audi | BMW |
| Model | RS4 | 650 |
| Year Released | 2009 | 2009 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4799 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 414 HP | 361 HP |
| Engine RPM | 7800 RPM | 6300 RPM |
| Torque | 430 Nm | 488 Nm |
| Torque RPM | 5500 RPM | 3400 RPM |
| Engine Bore Size | 84.5 mm | 93 mm |
| Engine Stroke Size | 92.8 mm | 88.3 mm |
| Engine Compression Ratio | 12.5:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.9 seconds | 5.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1845 kg | 1525 kg |
| Vehicle Length | 4560 mm | 4830 mm |
| Vehicle Width | 1820 mm | 1380 mm |
| Vehicle Height | 1400 mm | 1860 mm |
| Wheelbase Size | 2660 mm | 2790 mm |
| Fuel Consumption Overall | 14.1 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
