2005 Audi S4 vs. 2007 BMW 320
To start off, 2007 BMW 320 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 4,172 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 4000 RPM) has 172 more horse power than 2007 BMW 320. (168 HP @ 6100 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2007 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 170 kg more than 2007 BMW 320. 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 S4 (410 Nm) has 200 more torque (in Nm) than 2007 BMW 320. (210 Nm). This means 2005 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 320.
Compare all specifications:
| 2005 Audi S4 | 2007 BMW 320 | |
| Make | Audi | BMW |
| Model | S4 | 320 |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 2169 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 168 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 410 Nm | 210 Nm |
| Engine Bore Size | 85 mm | 80 mm |
| Engine Stroke Size | 93 mm | 72 mm |
| Engine Compression Ratio | 11.0:1 | 10.8:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1785 kg | 1615 kg |
| Vehicle Length | 4550 mm | 4490 mm |
| Vehicle Width | 1770 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2470 mm | 2730 mm |
| Fuel Consumption Overall | 13.8 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 66 L | 63 L |
