2006 BMW 745 vs. 2007 Audi S4
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 745. In addition, the cost of maintenance, including insurance, on 2006 BMW 745 would be higher. At 4,423 cc (8 cylinders), 2006 BMW 745 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (339 HP @ 7000 RPM) has 14 more horse power than 2006 BMW 745. (325 HP @ 3800 RPM) In normal driving conditions, 2007 Audi S4 should accelerate faster than 2006 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 745 weights approximately 320 kg more than 2007 Audi S4.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 745. 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, 2006 BMW 745 (700 Nm @ 1900 RPM) has 290 more torque (in Nm) than 2007 Audi S4. (410 Nm @ 3500 RPM). This means 2006 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S4.
Compare all specifications:
| 2006 BMW 745 | 2007 Audi S4 | |
| Make | BMW | Audi |
| Model | 745 | S4 |
| Year Released | 2006 | 2007 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4423 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 325 HP | 339 HP |
| Engine RPM | 3800 RPM | 7000 RPM |
| Torque | 700 Nm | 410 Nm |
| Torque RPM | 1900 RPM | 3500 RPM |
| Engine Compression Ratio | 17.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 245 km/hour | 245 km/hour |
| Acceleration 0-100mph | 6.6 seconds | 5.8 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 2115 kg | 1795 kg |
| Vehicle Length | 5050 mm | 4580 mm |
| Vehicle Width | 1910 mm | 1790 mm |
| Vehicle Height | 1500 mm | 1450 mm |
| Wheelbase Size | 3000 mm | 2660 mm |
| Fuel Consumption Overall | 9.5 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 88 L | 66 L |
