1987 Ford Sierra vs. 1972 Mazda RX-4
To start off, 1987 Ford Sierra is newer by 15 year(s). Which means there will be less support and parts availability for 1972 Mazda RX-4. In addition, the cost of maintenance, including insurance, on 1972 Mazda RX-4 would be higher. At 2,616 cc, 1972 Mazda RX-4 is equipped with a bigger engine. In terms of performance, 1972 Mazda RX-4 (114 HP @ 6000 RPM) has 1 more horse power than 1987 Ford Sierra. (113 HP @ 5300 RPM) In normal driving conditions, 1972 Mazda RX-4 should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1972 Mazda RX-4 weights approximately 20 kg more than 1987 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1987 Ford Sierra (180 Nm @ 3000 RPM) has 15 more torque (in Nm) than 1972 Mazda RX-4. (165 Nm @ 4000 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1972 Mazda RX-4.
Compare all specifications:
| 1987 Ford Sierra | 1972 Mazda RX-4 | |
| Make | Ford | Mazda |
| Model | Sierra | RX-4 |
| Year Released | 1987 | 1972 |
| Engine Position | Front | Front |
| Engine Size | 2294 cc | 2616 cc |
| Engine Type | in-line | dual-disk rotary |
| Horse Power | 113 HP | 114 HP |
| Engine RPM | 5300 RPM | 6000 RPM |
| Torque | 180 Nm | 165 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1090 kg | 1110 kg |
| Vehicle Length | 4400 mm | 4400 mm |
| Vehicle Width | 1680 mm | 1670 mm |
| Vehicle Height | 1370 mm | 1390 mm |
| Wheelbase Size | 2620 mm | 2520 mm |
