2006 Audi S4 vs. 2008 BMW 325
To start off, 2008 BMW 325 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Audi S4. In addition, the cost of maintenance, including insurance, on 2006 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (339 HP @ 7000 RPM) has 150 more horse power than 2008 BMW 325. (189 HP @ 6000 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 2008 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 305 kg more than 2008 BMW 325. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2008 BMW 325 is four wheel drive (4WD), it will have significant more traction and grip than 2006 Audi S4. In wet, icy, snow, or gravel driving conditions, 2008 BMW 325 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 Audi S4 (410 Nm @ 3500 RPM) has 165 more torque (in Nm) than 2008 BMW 325. (245 Nm @ 3500 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 325.
Compare all specifications:
| 2006 Audi S4 | 2008 BMW 325 | |
| Make | Audi | BMW |
| Model | S4 | 325 |
| Year Released | 2006 | 2008 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2494 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 339 HP | 189 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 410 Nm | 245 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.6 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 75 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 5.8 seconds | 7.8 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1880 kg | 1575 kg |
| Vehicle Length | 4590 mm | 4480 mm |
| Vehicle Width | 1730 mm | 1750 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2650 mm | 2730 mm |
| Fuel Consumption Overall | 13.4 L/100km | 10 L/100km |
| Fuel Tank Capacity | 63 L | 63 L |
