2004 Audi S4 vs. 2006 BMW 750
To start off, 2006 BMW 750 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Audi S4. In addition, the cost of maintenance, including insurance, on 2004 Audi S4 would be higher. At 4,799 cc (8 cylinders), 2006 BMW 750 is equipped with a bigger engine. In terms of performance, 2006 BMW 750 (362 HP @ 6300 RPM) has 22 more horse power than 2004 Audi S4. (340 HP @ 6200 RPM) In normal driving conditions, 2006 BMW 750 should accelerate faster than 2004 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 750 weights approximately 55 kg more than 2004 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2006 BMW 750 (491 Nm) has 80 more torque (in Nm) than 2004 Audi S4. (411 Nm). This means 2006 BMW 750 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi S4.
Compare all specifications:
| 2004 Audi S4 | 2006 BMW 750 | |
| Make | Audi | BMW |
| Model | S4 | 750 |
| Year Released | 2004 | 2006 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4799 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 362 HP |
| Engine RPM | 6200 RPM | 6300 RPM |
| Torque | 411 Nm | 491 Nm |
| Engine Bore Size | 85 mm | 93 mm |
| Engine Stroke Size | 93 mm | 88.3 mm |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1895 kg | 1950 kg |
| Vehicle Length | 4580 mm | 5190 mm |
| Vehicle Width | 1780 mm | 1910 mm |
| Vehicle Height | 1400 mm | 1490 mm |
| Wheelbase Size | 2770 mm | 3130 mm |
| Fuel Consumption City | 13.1 L/100km | 16.9 L/100km |
| Fuel Consumption Overall | 11.8 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 63 L | 90 L |
