1980 BMW M5 vs. 1978 Mazda 929
To start off, 1980 BMW M5 is newer by 2 year(s). Which means there will be less support and parts availability for 1978 Mazda 929. In addition, the cost of maintenance, including insurance, on 1978 Mazda 929 would be higher. At 3,453 cc (6 cylinders), 1980 BMW M5 is equipped with a bigger engine. In terms of performance, 1980 BMW M5 (218 HP @ 5200 RPM) has 135 more horse power than 1978 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 1980 BMW M5 should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1980 BMW M5 weights approximately 321 kg more than 1978 Mazda 929. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1980 BMW M5 (304 Nm @ 4000 RPM) has 170 more torque (in Nm) than 1978 Mazda 929. (134 Nm @ 3000 RPM). This means 1980 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 929.
Compare all specifications:
| 1980 BMW M5 | 1978 Mazda 929 | |
| Make | BMW | Mazda |
| Model | M5 | 929 |
| Year Released | 1980 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 3453 cc | 1769 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 218 HP | 83 HP |
| Engine RPM | 5200 RPM | 5000 RPM |
| Torque | 304 Nm | 134 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Engine Bore Size | 93.4 mm | 80 mm |
| Engine Stroke Size | 84 mm | 88 mm |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1391 kg | 1070 kg |
| Vehicle Length | 4620 mm | 4410 mm |
| Vehicle Width | 1700 mm | 1670 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2640 mm | 2520 mm |
| Fuel Tank Capacity | 70 L | 55 L |
