2007 Audi S4 vs. 2006 BMW 325
To start off, 2007 Audi S4 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW 325. In addition, the cost of maintenance, including insurance, on 2006 BMW 325 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (340 HP @ 7000 RPM) has 156 more horse power than 2006 BMW 325. (184 HP @ 6000 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 2006 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S4 weights approximately 45 kg more than 2006 BMW 325. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 325. In wet, icy, snow, or gravel driving conditions, 2007 Audi S4 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, 2007 Audi S4 (410 Nm @ 3500 RPM) has 173 more torque (in Nm) than 2006 BMW 325. (237 Nm @ 3500 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 325.
Compare all specifications:
| 2007 Audi S4 | 2006 BMW 325 | |
| Make | Audi | BMW |
| Model | S4 | 325 |
| Year Released | 2007 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2491 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 340 HP | 184 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 410 Nm | 237 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 75 mm |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1660 kg | 1615 kg |
| Vehicle Length | 4590 mm | 4490 mm |
| Vehicle Width | 1780 mm | 1760 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2650 mm | 2730 mm |
| Fuel Consumption Overall | 13.3 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 63 L | 63 L |
