2006 Audi S4 vs. 1998 BMW 730
To start off, 2006 Audi S4 is newer by 8 year(s). Which means there will be less support and parts availability for 1998 BMW 730. In addition, the cost of maintenance, including insurance, on 1998 BMW 730 would be higher. At 4,163 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (340 HP @ 6800 RPM) has 150 more horse power than 1998 BMW 730. (190 HP @ 5300 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 1998 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 1998 BMW 730 weights approximately 215 kg more than 2006 Audi S4.
Because 2006 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1998 BMW 730. In wet, icy, snow, or gravel driving conditions, 2006 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 Audi S4 (410 Nm @ 3500 RPM) has 130 more torque (in Nm) than 1998 BMW 730. (280 Nm @ 3950 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1998 BMW 730.
Compare all specifications:
| 2006 Audi S4 | 1998 BMW 730 | |
| Make | Audi | BMW |
| Model | S4 | 730 |
| Year Released | 2006 | 1998 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2793 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 190 HP |
| Engine RPM | 6800 RPM | 5300 RPM |
| Torque | 410 Nm | 280 Nm |
| Torque RPM | 3500 RPM | 3950 RPM |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1530 kg | 1745 kg |
| Vehicle Length | 4580 mm | 5130 mm |
| Vehicle Width | 1780 mm | 1870 mm |
| Vehicle Height | 1400 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2940 mm |
| Fuel Tank Capacity | 63 L | 90 L |
