1991 Audi 100 vs. 1978 BMW M1
To start off, 1991 Audi 100 is newer by 13 year(s). Which means there will be less support and parts availability for 1978 BMW M1. In addition, the cost of maintenance, including insurance, on 1978 BMW M1 would be higher. At 3,453 cc (6 cylinders), 1978 BMW M1 is equipped with a bigger engine. In terms of performance, 1978 BMW M1 (273 HP @ 6500 RPM) has 160 more horse power than 1991 Audi 100. (113 HP @ 4000 RPM) In normal driving conditions, 1978 BMW M1 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 20 kg more than 1978 BMW M1.
Because 1978 BMW M1 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 1978 BMW M1. However, in wet, icy, snow, or gravel driving conditions, 1991 Audi 100, 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, 1978 BMW M1 (330 Nm @ 5000 RPM) has 66 more torque (in Nm) than 1991 Audi 100. (264 Nm @ 2250 RPM). This means 1978 BMW M1 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 1978 BMW M1 | |
| Make | Audi | BMW |
| Model | 100 | M1 |
| Year Released | 1991 | 1978 |
| Engine Position | Front | Middle |
| Engine Size | 2461 cc | 3453 cc |
| Engine Cylinders | 5 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 113 HP | 273 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 264 Nm | 330 Nm |
| Torque RPM | 2250 RPM | 5000 RPM |
| Engine Bore Size | 81 mm | 93.5 mm |
| Engine Stroke Size | 95.5 mm | 84 mm |
| Engine Compression Ratio | 21.0:1 | 9.0:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1320 kg | 1300 kg |
| Vehicle Length | 4800 mm | 4370 mm |
| Vehicle Width | 1790 mm | 1830 mm |
| Vehicle Height | 1450 mm | 1140 mm |
| Wheelbase Size | 2700 mm | 2570 mm |
| Fuel Tank Capacity | 80 L | 116 L |
