2004 Audi A4 vs. 1981 BMW 725
To start off, 2004 Audi A4 is newer by 23 year(s). Which means there will be less support and parts availability for 1981 BMW 725. In addition, the cost of maintenance, including insurance, on 1981 BMW 725 would be higher. At 2,983 cc (6 cylinders), 2004 Audi A4 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (201 HP @ 3500 RPM) has 53 more horse power than 1981 BMW 725. (148 HP @ 5500 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 1981 BMW 725.
Because 2004 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1981 BMW 725. In wet, icy, snow, or gravel driving conditions, 2004 Audi A4 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 A4 (450 Nm @ 1400 RPM) has 235 more torque (in Nm) than 1981 BMW 725. (215 Nm @ 4000 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 725.
Compare all specifications:
2004 Audi A4 | 1981 BMW 725 | |
Make | Audi | BMW |
Model | A4 | 725 |
Year Released | 2004 | 1981 |
Body Type | Station Wagon | Sedan |
Engine Position | Front | Front |
Engine Size | 2983 cc | 2493 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | V | in-line |
Valves per Cylinder | 4 valves | 2 valves |
Horse Power | 201 HP | 148 HP |
Engine RPM | 3500 RPM | 5500 RPM |
Torque | 450 Nm | 215 Nm |
Torque RPM | 1400 RPM | 4000 RPM |
Engine Bore Size | 83 mm | 86 mm |
Engine Stroke Size | 91.4 mm | 71.6 mm |
Engine Compression Ratio | 17.0:1 | 9.6:1 |
Fuel Type | Diesel | Gasoline |
Drive Type | 4WD | Rear |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 5 doors | 4 doors |
Vehicle Length | 4590 mm | 4870 mm |
Vehicle Width | 1780 mm | 1810 mm |
Vehicle Height | 1430 mm | 1440 mm |
Wheelbase Size | 2660 mm | 2810 mm |