1991 Audi Coupe vs. 1978 BMW 725
To start off, 1991 Audi Coupe is newer by 13 year(s). Which means there will be less support and parts availability for 1978 BMW 725. In addition, the cost of maintenance, including insurance, on 1978 BMW 725 would be higher. At 2,771 cc (6 cylinders), 1991 Audi Coupe is equipped with a bigger engine. In terms of performance, 1991 Audi Coupe (175 HP @ 5500 RPM) has 27 more horse power than 1978 BMW 725. (148 HP @ 5500 RPM). In normal driving conditions, 1991 Audi Coupe should accelerate faster than 1978 BMW 725.
Because 1991 Audi Coupe is four wheel drive (4WD), it will have significant more traction and grip than 1978 BMW 725. In wet, icy, snow, or gravel driving conditions, 1991 Audi Coupe 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, 1991 Audi Coupe (249 Nm @ 3000 RPM) has 34 more torque (in Nm) than 1978 BMW 725. (215 Nm @ 4000 RPM). This means 1991 Audi Coupe will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 725.
Compare all specifications:
| 1991 Audi Coupe | 1978 BMW 725 | |
| Make | Audi | BMW |
| Model | Coupe | 725 |
| Year Released | 1991 | 1978 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 2495 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 175 HP | 148 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 249 Nm | 215 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Bore Size | 82.5 mm | 86.1 mm |
| Engine Stroke Size | 86.4 mm | 71.6 mm |
| Engine Compression Ratio | 10.0:1 | 9.6:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Length | 4370 mm | 4870 mm |
| Vehicle Width | 1720 mm | 1810 mm |
| Vehicle Height | 1370 mm | 1440 mm |
| Wheelbase Size | 2560 mm | 2810 mm |
