1973 BMW 525 vs. 1977 Mazda 929
To start off, 1977 Mazda 929 is newer by 4 year(s). Which means there will be less support and parts availability for 1973 BMW 525. In addition, the cost of maintenance, including insurance, on 1973 BMW 525 would be higher. At 2,494 cc (6 cylinders), 1973 BMW 525 is equipped with a bigger engine. In terms of performance, 1973 BMW 525 (143 HP @ 6000 RPM) has 60 more horse power than 1977 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 1973 BMW 525 should accelerate faster than 1977 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1973 BMW 525 weights approximately 306 kg more than 1977 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, 1973 BMW 525 (208 Nm @ 4000 RPM) has 74 more torque (in Nm) than 1977 Mazda 929. (134 Nm @ 3000 RPM). This means 1973 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1977 Mazda 929.
Compare all specifications:
| 1973 BMW 525 | 1977 Mazda 929 | |
| Make | BMW | Mazda |
| Model | 525 | 929 |
| Year Released | 1973 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1769 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 143 HP | 83 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 208 Nm | 134 Nm |
| Torque RPM | 4000 RPM | 3000 RPM |
| Engine Bore Size | 86 mm | 80 mm |
| Engine Stroke Size | 71.6 mm | 88 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1380 kg | 1074 kg |
| Vehicle Length | 4630 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 |
