2009 Audi S4 vs. 2005 BMW 325
To start off, 2009 Audi S4 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 BMW 325. In addition, the cost of maintenance, including insurance, on 2005 BMW 325 would be higher. At 4,161 cc (8 cylinders), 2009 Audi S4 is equipped with a bigger engine. In terms of performance, 2009 Audi S4 (340 HP @ 6800 RPM) has 125 more horse power than 2005 BMW 325. (215 HP @ 6500 RPM). In normal driving conditions, 2009 Audi S4 should accelerate faster than 2005 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 325 weights approximately 564 kg more than 2009 Audi S4.
Let's talk about torque, 2009 Audi S4 (410 Nm @ 3500 RPM) has 160 more torque (in Nm) than 2005 BMW 325. (250 Nm @ 2750 RPM). This means 2009 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 325.
Compare all specifications:
| 2009 Audi S4 | 2005 BMW 325 | |
| Make | Audi | BMW |
| Model | S4 | 325 |
| Year Released | 2009 | 2005 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 215 HP |
| Engine RPM | 6800 RPM | 6500 RPM |
| Torque | 410 Nm | 250 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Bore Size | 84.5 mm | 82 mm |
| Engine Stroke Size | 92.8 mm | 78.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 930 kg | 1494 kg |
| Vehicle Length | 4580 mm | 4480 mm |
| Vehicle Width | 1780 mm | 1820 mm |
| Vehicle Height | 1400 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2730 mm |
| Fuel Tank Capacity | 63 L | 63 L |
