2003 Audi A6 vs. 2006 BMW 650
To start off, 2006 BMW 650 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Audi A6. In addition, the cost of maintenance, including insurance, on 2003 Audi A6 would be higher. At 4,800 cc (8 cylinders), 2006 BMW 650 is equipped with a bigger engine. In terms of performance, 2006 BMW 650 (360 HP @ 6300 RPM) has 134 more horse power than 2003 Audi A6. (226 HP @ 5800 RPM) In normal driving conditions, 2006 BMW 650 should accelerate faster than 2003 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 650 weights approximately 68 kg more than 2003 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 650. In wet, icy, snow, or gravel driving conditions, 2003 Audi A6 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, 2006 BMW 650 (488 Nm @ 3400 RPM) has 178 more torque (in Nm) than 2003 Audi A6. (310 Nm @ 1700 RPM). This means 2006 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6.
Compare all specifications:
| 2003 Audi A6 | 2006 BMW 650 | |
| Make | Audi | BMW |
| Model | A6 | 650 |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 4800 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 226 HP | 360 HP |
| Engine RPM | 5800 RPM | 6300 RPM |
| Torque | 310 Nm | 488 Nm |
| Torque RPM | 1700 RPM | 3400 RPM |
| Engine Bore Size | 81 mm | 93 mm |
| Engine Stroke Size | 86.4 mm | 88.3 mm |
| Engine Compression Ratio | 9.3:1 | 11.0:1 |
| Top Speed | 245 km/hour | 241 km/hour |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1662 kg | 1730 kg |
| Vehicle Length | 4800 mm | 4840 mm |
| Vehicle Width | 1820 mm | 1860 mm |
| Vehicle Height | 1460 mm | 1380 mm |
| Wheelbase Size | 2770 mm | 2790 mm |
| Fuel Consumption | 8.8 L/100km | 10.7 L/100km |
| Fuel Consumption City | 16.6 L/100km | 16.8 L/100km |
| Fuel Consumption Overall | 11.6 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
