2005 Audi S6 vs. 2007 BMW 650
To start off, 2007 BMW 650 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi S6. In addition, the cost of maintenance, including insurance, on 2005 Audi S6 would be higher. At 4,799 cc (8 cylinders), 2007 BMW 650 is equipped with a bigger engine. In terms of performance, 2007 BMW 650 (360 HP @ 6300 RPM) has 25 more horse power than 2005 Audi S6. (335 HP @ 7000 RPM) In normal driving conditions, 2007 BMW 650 should accelerate faster than 2005 Audi S6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S6 weights approximately 120 kg more than 2007 BMW 650.
Because 2005 Audi S6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 650. In wet, icy, snow, or gravel driving conditions, 2005 Audi S6 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, 2007 BMW 650 (488 Nm @ 3400 RPM) has 68 more torque (in Nm) than 2005 Audi S6. (420 Nm @ 3400 RPM). This means 2007 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S6. 2005 Audi S6 has automatic transmission and 2007 BMW 650 has manual transmission. 2007 BMW 650 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi S6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi S6 | 2007 BMW 650 | |
| Make | Audi | BMW |
| Model | S6 | 650 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4799 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 335 HP | 360 HP |
| Engine RPM | 7000 RPM | 6300 RPM |
| Torque | 420 Nm | 488 Nm |
| Torque RPM | 3400 RPM | 3400 RPM |
| Engine Bore Size | 84.5 mm | 93 mm |
| Engine Stroke Size | 93 mm | 88.3 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.7 seconds | 5.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1760 kg | 1640 kg |
| Wheelbase Size | 2770 mm | 2790 mm |
| Fuel Tank Capacity | 82 L | 70 L |
