2003 Audi RS6 vs. 2005 BMW 750
To start off, 2005 BMW 750 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Audi RS6. In addition, the cost of maintenance, including insurance, on 2003 Audi RS6 would be higher. At 4,799 cc (8 cylinders), 2005 BMW 750 is equipped with a bigger engine. In terms of performance, 2003 Audi RS6 (444 HP @ 6300 RPM) has 82 more horse power than 2005 BMW 750. (362 HP @ 6300 RPM). In normal driving conditions, 2003 Audi RS6 should accelerate faster than 2005 BMW 750.
Because 2003 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 750. In wet, icy, snow, or gravel driving conditions, 2003 Audi RS6 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, 2003 Audi RS6 (560 Nm @ 1950 RPM) has 70 more torque (in Nm) than 2005 BMW 750. (490 Nm @ 3400 RPM). This means 2003 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 750. 2005 BMW 750 has automatic transmission and 2003 Audi RS6 has manual transmission. 2003 Audi RS6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 BMW 750 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Audi RS6 | 2005 BMW 750 | |
| Make | Audi | BMW |
| Model | RS6 | 750 |
| Year Released | 2003 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4799 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 362 HP |
| Engine RPM | 6300 RPM | 6300 RPM |
| Torque | 560 Nm | 490 Nm |
| Torque RPM | 1950 RPM | 3400 RPM |
| Engine Bore Size | 84.5 mm | 93 mm |
| Engine Stroke Size | 93 mm | 88.3 mm |
| Engine Compression Ratio | 9.3:1 | 10.5:1 |
| Top Speed | 250 km/hour | 250 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1910 kg | 1910 kg |
| Vehicle Length | 4860 mm | 5050 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1460 mm | 1500 mm |
| Wheelbase Size | 2760 mm | 2890 mm |
| Fuel Consumption Highway | 10.4 L/100km | 8.5 L/100km |
| Fuel Consumption City | 21.8 L/100km | 17 L/100km |
| Fuel Consumption Overall | 14.6 L/100km | 11.6 L/100km |
| Fuel Tank Capacity | 82 L | 88 L |
