2005 Audi S6 vs. 2007 BMW 325
To start off, 2007 BMW 325 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 4,172 cc (8 cylinders), 2005 Audi S6 is equipped with a bigger engine. In terms of performance, 2005 Audi S6 (335 HP @ 7000 RPM) has 120 more horse power than 2007 BMW 325. (215 HP @ 6500 RPM). In normal driving conditions, 2005 Audi S6 should accelerate faster than 2007 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S6 weights approximately 295 kg more than 2007 BMW 325. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi S6 (420 Nm @ 3400 RPM) has 169 more torque (in Nm) than 2007 BMW 325. (251 Nm @ 2750 RPM). This means 2005 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 325.
Compare all specifications:
| 2005 Audi S6 | 2007 BMW 325 | |
| Make | Audi | BMW |
| Model | S6 | 325 |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 215 HP |
| Engine RPM | 7000 RPM | 6500 RPM |
| Torque | 420 Nm | 251 Nm |
| Torque RPM | 3400 RPM | 2750 RPM |
| Engine Bore Size | 84.5 mm | 78.8 mm |
| Engine Stroke Size | 93 mm | 82 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 245 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 7.7 seconds |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1815 kg | 1520 kg |
| Vehicle Length | 4840 mm | 4530 mm |
| Vehicle Width | 1860 mm | 1430 mm |
| Vehicle Height | 1450 mm | 1820 mm |
| Wheelbase Size | 2660 mm | 2770 mm |
| Fuel Consumption Overall | 14.5 L/100km | 9 L/100km |
| Fuel Tank Capacity | 82 L | 60 L |
