1986 Ford Sierra vs. 1973 Mazda 929
To start off, 1986 Ford Sierra is newer by 13 year(s). Which means there will be less support and parts availability for 1973 Mazda 929. In addition, the cost of maintenance, including insurance, on 1973 Mazda 929 would be higher. At 2,792 cc (6 cylinders), 1986 Ford Sierra is equipped with a bigger engine. In terms of performance, 1986 Ford Sierra (160 HP @ 5700 RPM) has 77 more horse power than 1973 Mazda 929. (83 HP @ 5000 RPM). In normal driving conditions, 1986 Ford Sierra should accelerate faster than 1973 Mazda 929. With that said, vehicle weight also plays an important factor in acceleration. 1986 Ford Sierra weights approximately 196 kg more than 1973 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, 1986 Ford Sierra (216 Nm @ 4300 RPM) has 82 more torque (in Nm) than 1973 Mazda 929. (134 Nm @ 3000 RPM). This means 1986 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1973 Mazda 929.
Compare all specifications:
| 1986 Ford Sierra | 1973 Mazda 929 | |
| Make | Ford | Mazda |
| Model | Sierra | 929 |
| Year Released | 1986 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 2792 cc | 1769 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 160 HP | 83 HP |
| Engine RPM | 5700 RPM | 5000 RPM |
| Torque | 216 Nm | 134 Nm |
| Torque RPM | 4300 RPM | 3000 RPM |
| Engine Bore Size | 93 mm | 80 mm |
| Engine Stroke Size | 68.5 mm | 88 mm |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 4 doors |
| Vehicle Weight | 1266 kg | 1070 kg |
| Vehicle Length | 4430 mm | 4410 mm |
| Vehicle Width | 1730 mm | 1670 mm |
| Wheelbase Size | 2610 mm | 2520 mm |
| Fuel Tank Capacity | 116 L | 55 L |
