2008 BMW 745 vs. 2005 Audi S4
To start off, 2008 BMW 745 is newer by 3 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 4,397 cc (8 cylinders), 2008 BMW 745 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 7000 RPM) has 12 more horse power than 2008 BMW 745. (328 HP @ 6100 RPM) In normal driving conditions, 2005 Audi S4 should accelerate faster than 2008 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 745 weights approximately 90 kg more than 2005 Audi S4.
Because 2005 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 745. In wet, icy, snow, or gravel driving conditions, 2005 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, 2008 BMW 745 (450 Nm @ 3600 RPM) has 40 more torque (in Nm) than 2005 Audi S4. (410 Nm @ 3500 RPM). This means 2008 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2008 BMW 745 | 2005 Audi S4 | |
| Make | BMW | Audi |
| Model | 745 | S4 |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4397 cc | 4163 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 328 HP | 340 HP |
| Engine RPM | 6100 RPM | 7000 RPM |
| Torque | 450 Nm | 410 Nm |
| Torque RPM | 3600 RPM | 3500 RPM |
| Engine Bore Size | 92 mm | 85 mm |
| Engine Stroke Size | 82.7 mm | 93 mm |
| Engine Compression Ratio | 10.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.3 seconds | 5.9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1945 kg | 1855 kg |
| Vehicle Length | 5040 mm | 4580 mm |
| Vehicle Width | 1910 mm | 1790 mm |
| Vehicle Height | 1500 mm | 1450 mm |
| Wheelbase Size | 3000 mm | 2660 mm |
| Fuel Consumption Overall | 10.9 L/100km | 14 L/100km |
| Fuel Tank Capacity | 88 L | 63 L |
