2009 Audi S4 vs. 1999 BMW 740
To start off, 2009 Audi S4 is newer by 10 year(s). Which means there will be less support and parts availability for 1999 BMW 740. In addition, the cost of maintenance, including insurance, on 1999 BMW 740 would be higher. At 4,398 cc (8 cylinders), 1999 BMW 740 is equipped with a bigger engine. In terms of performance, 2009 Audi S4 (340 HP @ 7000 RPM) has 57 more horse power than 1999 BMW 740. (283 HP @ 7750 RPM). In normal driving conditions, 2009 Audi S4 should accelerate faster than 1999 BMW 740. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW 740 weights approximately 1015 kg more than 2009 Audi S4.
Because 2009 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1999 BMW 740. In wet, icy, snow, or gravel driving conditions, 2009 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, 1999 BMW 740 (419 Nm) has 9 more torque (in Nm) than 2009 Audi S4. (410 Nm). This means 1999 BMW 740 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi S4.
Compare all specifications:
| 2009 Audi S4 | 1999 BMW 740 | |
| Make | Audi | BMW |
| Model | S4 | 740 |
| Year Released | 2009 | 1999 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 340 HP | 283 HP |
| Engine RPM | 7000 RPM | 7750 RPM |
| Torque | 410 Nm | 419 Nm |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1945 kg |
| Vehicle Length | 4580 mm | 4990 mm |
| Vehicle Width | 1780 mm | 1870 mm |
| Vehicle Height | 1400 mm | 1440 mm |
| Wheelbase Size | 2660 mm | 2940 mm |
