2004 Audi S4 vs. 1980 BMW 725
To start off, 2004 Audi S4 is newer by 24 year(s). Which means there will be less support and parts availability for 1980 BMW 725. In addition, the cost of maintenance, including insurance, on 1980 BMW 725 would be higher. At 4,162 cc (8 cylinders), 2004 Audi S4 is equipped with a bigger engine. In terms of performance, 2004 Audi S4 (339 HP @ 7000 RPM) has 191 more horse power than 1980 BMW 725. (148 HP @ 5500 RPM). In normal driving conditions, 2004 Audi S4 should accelerate faster than 1980 BMW 725.
Because 2004 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1980 BMW 725. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Audi S4 (410 Nm @ 3500 RPM) has 195 more torque (in Nm) than 1980 BMW 725. (215 Nm @ 4000 RPM). This means 2004 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1980 BMW 725.
Compare all specifications:
| 2004 Audi S4 | 1980 BMW 725 | |
| Make | Audi | BMW |
| Model | S4 | 725 |
| Year Released | 2004 | 1980 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4162 cc | 2495 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 339 HP | 148 HP |
| Engine RPM | 7000 RPM | 5500 RPM |
| Torque | 410 Nm | 215 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 86 mm |
| Engine Stroke Size | 92.8 mm | 71.6 mm |
| Engine Compression Ratio | 11.0:1 | 9.6:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4590 mm | 4870 mm |
| Vehicle Width | 1780 mm | 1810 mm |
| Vehicle Height | 1430 mm | 1440 mm |
| Wheelbase Size | 2470 mm | 2810 mm |
