1978 Mazda 929 vs. 2003 Mazda 6
To start off, 2003 Mazda 6 is newer by 25 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 2,261 cc (4 cylinders), 2003 Mazda 6 is equipped with a bigger engine. In terms of performance, 2003 Mazda 6 (164 HP @ 6500 RPM) has 81 more horse power than 1978 Mazda 929. (83 HP @ 5000 RPM) In normal driving conditions, 2003 Mazda 6 should accelerate faster than 1978 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 2003 Mazda 6 weights approximately 345 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, 2003 Mazda 6 (207 Nm @ 4000 RPM) has 73 more torque (in Nm) than 1978 Mazda 929. (134 Nm @ 3000 RPM). This means 2003 Mazda 6 will have an easier job in driving up hills or pulling heavy equipment than 1978 Mazda 929.
Compare all specifications:
| 1978 Mazda 929 | 2003 Mazda 6 | |
| Make | Mazda | Mazda |
| Model | 929 | 6 |
| Year Released | 1978 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1769 cc | 2261 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 83 HP | 164 HP |
| Engine RPM | 5000 RPM | 6500 RPM |
| Torque | 134 Nm | 207 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Bore Size | 80 mm | 87.6 mm |
| Engine Stroke Size | 88 mm | 94 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1070 kg | 1415 kg |
| Vehicle Length | 4410 mm | 4690 mm |
| Vehicle Width | 1670 mm | 1790 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2520 mm | 2680 mm |
| Fuel Tank Capacity | 55 L | 64 L |
