2009 Audi A4 vs. 1981 BMW 725
To start off, 2009 Audi A4 is newer by 28 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 2,493 cc (6 cylinders), 1981 BMW 725 is equipped with a bigger engine. In terms of performance, 1981 BMW 725 (148 HP @ 5500 RPM) has 7 more horse power than 2009 Audi A4. (141 HP @ 4200 RPM) In normal driving conditions, 1981 BMW 725 should accelerate faster than 2009 Audi A4.
Because 1981 BMW 725 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1981 BMW 725. However, in wet, icy, snow, or gravel driving conditions, 2009 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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, 2009 Audi A4 (320 Nm @ 1750 RPM) has 105 more torque (in Nm) than 1981 BMW 725. (215 Nm @ 4000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1981 BMW 725.
Compare all specifications:
2009 Audi A4 | 1981 BMW 725 | |
Make | Audi | BMW |
Model | A4 | 725 |
Year Released | 2009 | 1981 |
Body Type | Sedan | Sedan |
Engine Position | Front | Front |
Engine Size | 1968 cc | 2493 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 4 valves | 2 valves |
Horse Power | 141 HP | 148 HP |
Engine RPM | 4200 RPM | 5500 RPM |
Torque | 320 Nm | 215 Nm |
Torque RPM | 1750 RPM | 4000 RPM |
Engine Bore Size | 81 mm | 86 mm |
Engine Stroke Size | 95.5 mm | 71.6 mm |
Engine Compression Ratio | 16.5:1 | 9.6:1 |
Fuel Type | Diesel | Gasoline |
Drive Type | Front | Rear |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 4 doors |
Vehicle Length | 4710 mm | 4870 mm |
Vehicle Width | 2010 mm | 1810 mm |
Vehicle Height | 1430 mm | 1440 mm |
Wheelbase Size | 2810 mm | 2810 mm |