1987 Ford Sierra vs. 1975 Mazda RX 4 Coupe
To start off, 1987 Ford Sierra is newer by 12 year(s). Which means there will be less support and parts availability for 1975 Mazda RX 4 Coupe. In addition, the cost of maintenance, including insurance, on 1975 Mazda RX 4 Coupe would be higher. At 2,616 cc (2 cylinders), 1975 Mazda RX 4 Coupe is equipped with a bigger engine. In terms of performance, 1975 Mazda RX 4 Coupe (114 HP @ 6000 RPM) has 48 more horse power than 1987 Ford Sierra. (66 HP @ 4200 RPM) In normal driving conditions, 1975 Mazda RX 4 Coupe should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 1987 Ford Sierra weights approximately 60 kg more than 1975 Mazda RX 4 Coupe.
Let's talk about torque, 1975 Mazda RX 4 Coupe (165 Nm @ 4000 RPM) has 23 more torque (in Nm) than 1987 Ford Sierra. (142 Nm @ 2000 RPM). This means 1975 Mazda RX 4 Coupe will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 1975 Mazda RX 4 Coupe | |
| Make | Ford | Mazda |
| Model | Sierra | RX 4 Coupe |
| Year Released | 1987 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 2303 cc | 2616 cc |
| Engine Cylinders | 4 cylinders | 2 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 66 HP | 114 HP |
| Engine RPM | 4200 RPM | 6000 RPM |
| Torque | 142 Nm | 165 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Fuel Type | Diesel | Gasoline |
| Vehicle Weight | 1170 kg | 1110 kg |
| Vehicle Length | 4430 mm | 4400 mm |
| Vehicle Width | 1700 mm | 1670 mm |
| Vehicle Height | 1370 mm | 1390 mm |
| Wheelbase Size | 2620 mm | 2520 mm |
