2005 Audi S4 vs. 2001 BMW 745
To start off, 2005 Audi S4 is newer by 4 year(s). Which means there will be less support and parts availability for 2001 BMW 745. In addition, the cost of maintenance, including insurance, on 2001 BMW 745 would be higher. At 4,398 cc (8 cylinders), 2001 BMW 745 is equipped with a bigger engine. In terms of performance, 2005 Audi S4 (340 HP @ 6300 RPM) has 15 more horse power than 2001 BMW 745. (325 HP @ 6100 RPM). In normal driving conditions, 2005 Audi S4 should accelerate faster than 2001 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 2001 BMW 745 weights approximately 145 kg more than 2005 Audi S4.
Let's talk about torque, 2001 BMW 745 (450 Nm) has 40 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2001 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 2001 BMW 745 | |
| Make | Audi | BMW |
| Model | S4 | 745 |
| Year Released | 2005 | 2001 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4161 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 325 HP |
| Engine RPM | 6300 RPM | 6100 RPM |
| Torque | 410 Nm | 450 Nm |
| Engine Bore Size | 85 mm | 92 mm |
| Engine Stroke Size | 93 mm | 82.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1840 kg | 1985 kg |
| Vehicle Length | 4580 mm | 5140 mm |
| Vehicle Width | 1780 mm | 1910 mm |
| Vehicle Height | 1400 mm | 1500 mm |
| Wheelbase Size | 2660 mm | 3140 mm |
| Fuel Tank Capacity | 63 L | 88 L |
