2009 BMW X5 vs. 1978 Mazda 929
To start off, 2009 BMW X5 is newer by 31 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 2,996 cc (6 cylinders), 2009 BMW X5 is equipped with a bigger engine. In terms of performance, 2009 BMW X5 (260 HP @ 6600 RPM) has 177 more horse power than 1978 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 2009 BMW X5 should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X5 weights approximately 480 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, 2009 BMW X5 (305 Nm @ 2750 RPM) has 171 more torque (in Nm) than 1978 Mazda 929. (134 Nm @ 3000 RPM). This means 2009 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 929.
Compare all specifications:
| 2009 BMW X5 | 1978 Mazda 929 | |
| Make | BMW | Mazda |
| Model | X5 | 929 |
| Year Released | 2009 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2996 cc | 1769 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 260 HP | 83 HP |
| Engine RPM | 6600 RPM | 5000 RPM |
| Torque | 305 Nm | 134 Nm |
| Torque RPM | 2750 RPM | 3000 RPM |
| Engine Bore Size | 85.1 mm | 80 mm |
| Engine Stroke Size | 88 mm | 88 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1550 kg | 1070 kg |
| Vehicle Length | 4860 mm | 4410 mm |
| Vehicle Width | 1940 mm | 1670 mm |
| Vehicle Height | 1770 mm | 1420 mm |
| Wheelbase Size | 2940 mm | 2520 mm |
| Fuel Tank Capacity | 85 L | 55 L |
