1996 Audi S6 vs. 2012 BMW 640
To start off, 2012 BMW 640 is newer by 16 year(s). Which means there will be less support and parts availability for 1996 Audi S6. In addition, the cost of maintenance, including insurance, on 1996 Audi S6 would be higher. At 4,170 cc (8 cylinders), 1996 Audi S6 is equipped with a bigger engine. In terms of performance, 1996 Audi S6 (335 HP @ 7000 RPM) has 24 more horse power than 2012 BMW 640. (311 HP @ 4400 RPM). In normal driving conditions, 1996 Audi S6 should accelerate faster than 2012 BMW 640. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW 640 weights approximately 50 kg more than 1996 Audi S6.
Because 1996 Audi S6 is four wheel drive (4WD), it will have significant more traction and grip than 2012 BMW 640. In wet, icy, snow, or gravel driving conditions, 1996 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, 2012 BMW 640 (630 Nm @ 1500 RPM) has 210 more torque (in Nm) than 1996 Audi S6. (420 Nm @ 3400 RPM). This means 2012 BMW 640 will have an easier job in driving up hills or pulling heavy equipment than 1996 Audi S6.
Compare all specifications:
| 1996 Audi S6 | 2012 BMW 640 | |
| Make | Audi | BMW |
| Model | S6 | 640 |
| Year Released | 1996 | 2012 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4170 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 335 HP | 311 HP |
| Engine RPM | 7000 RPM | 4400 RPM |
| Torque | 420 Nm | 630 Nm |
| Torque RPM | 3400 RPM | 1500 RPM |
| Engine Bore Size | 84.5 mm | 90 mm |
| Engine Stroke Size | 93 mm | 84 mm |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 5.4 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1815 kg | 1865 kg |
| Vehicle Length | 4840 mm | 5007 mm |
| Vehicle Width | 1860 mm | 1894 mm |
| Vehicle Height | 1450 mm | 1392 mm |
| Wheelbase Size | 2770 mm | 2968 mm |
| Fuel Tank Capacity | 82 L | 70 L |
