2006 Audi S4 vs. 2004 BMW 325
To start off, 2006 Audi S4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 BMW 325. In addition, the cost of maintenance, including insurance, on 2004 BMW 325 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 2004 BMW 325. (189 HP @ 7400 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 2004 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 325 weights approximately 435 kg more than 2006 Audi S4.
Let's talk about torque, 2006 Audi S4 (411 Nm) has 174 more torque (in Nm) than 2004 BMW 325. (237 Nm). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2004 BMW 325.
Compare all specifications:
| 2006 Audi S4 | 2004 BMW 325 | |
| Make | Audi | BMW |
| Model | S4 | 325 |
| Year Released | 2006 | 2004 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2491 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 | 7400 RPM |
| Torque | 411 Nm | 237 Nm |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 75 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1275 kg | 1710 kg |
| Vehicle Length | 4580 mm | 4480 mm |
| Vehicle Width | 1790 mm | 1750 mm |
| Vehicle Height | 1450 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2730 mm |
| Fuel Consumption Highway | 11.2 L/100km | 9.1 L/100km |
| Fuel Consumption City | 15.7 L/100km | 12.4 L/100km |
| Fuel Consumption Overall | 13.8 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 63 L | 63 L |
