2007 Audi S4 vs. 2006 BMW 525
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 525. In addition, the cost of maintenance, including insurance, on 2006 BMW 525 would be higher. At 4,161 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (340 HP @ 6800 RPM) has 125 more horse power than 2006 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 2006 BMW 525.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 160 more torque (in Nm) than 2006 BMW 525. (250 Nm @ 2750 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 525.
Compare all specifications:
| 2007 Audi S4 | 2006 BMW 525 | |
| Make | Audi | BMW |
| Model | S4 | 525 |
| Year Released | 2007 | 2006 |
| Body Type | Sedan | 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 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 4590 mm | 4850 mm |
| Vehicle Width | 1790 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1500 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Consumption Overall | 13.1 L/100km | 9.9 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
