1979 BMW 633 vs. 1981 BMW M1
To start off, 1981 BMW M1 is newer by 2 year(s). Which means there will be less support and parts availability for 1979 BMW 633. In addition, the cost of maintenance, including insurance, on 1979 BMW 633 would be higher. At 3,453 cc (6 cylinders), 1981 BMW M1 is equipped with a bigger engine. In terms of performance, 1981 BMW M1 (273 HP @ 6500 RPM) has 79 more horse power than 1979 BMW 633. (194 HP @ 5500 RPM) In normal driving conditions, 1981 BMW M1 should accelerate faster than 1979 BMW 633. With that said, vehicle weight also plays an important factor in acceleration. 1979 BMW 633 weights approximately 170 kg more than 1981 BMW M1.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1981 BMW M1 (330 Nm @ 5000 RPM) has 45 more torque (in Nm) than 1979 BMW 633. (285 Nm @ 4300 RPM). This means 1981 BMW M1 will have an easier job in driving up hills or pulling heavy equipment than 1979 BMW 633.
Compare all specifications:
1979 BMW 633 | 1981 BMW M1 | |
Make | BMW | BMW |
Model | 633 | M1 |
Year Released | 1979 | 1981 |
Body Type | Coupe | Coupe |
Engine Position | Front | Middle |
Engine Size | 3210 cc | 3453 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 2 valves | 4 valves |
Horse Power | 194 HP | 273 HP |
Engine RPM | 5500 RPM | 6500 RPM |
Torque | 285 Nm | 330 Nm |
Torque RPM | 4300 RPM | 5000 RPM |
Engine Bore Size | 89 mm | 93.5 mm |
Engine Stroke Size | 86 mm | 84 mm |
Engine Compression Ratio | 9.3:1 | 9.0:1 |
Drive Type | Rear | Rear |
Transmission Type | Manual | Manual |
Number of Seats | 4 seats | 2 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1470 kg | 1300 kg |
Vehicle Length | 4760 mm | 4370 mm |
Vehicle Width | 1760 mm | 1830 mm |
Vehicle Height | 1390 mm | 1140 mm |
Wheelbase Size | 2640 mm | 2570 mm |
Fuel Tank Capacity | 70 L | 116 L |