1987 Ford Sierra vs. 1973 Renault 15
To start off, 1987 Ford Sierra is newer by 14 year(s). Which means there will be less support and parts availability for 1973 Renault 15. In addition, the cost of maintenance, including insurance, on 1973 Renault 15 would be higher. At 1,993 cc (4 cylinders), 1987 Ford Sierra is equipped with a bigger engine. In terms of performance, 1987 Ford Sierra (204 HP @ 6250 RPM) has 145 more horse power than 1973 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 1987 Ford Sierra should accelerate faster than 1973 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 1987 Ford Sierra weights approximately 285 kg more than 1973 Renault 15. 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 (277 Nm @ 4500 RPM) has 179 more torque (in Nm) than 1973 Renault 15. (98 Nm @ 3500 RPM). This means 1987 Ford Sierra will have an easier job in driving up hills or pulling heavy equipment than 1973 Renault 15.
Compare all specifications:
| 1987 Ford Sierra | 1973 Renault 15 | |
| Make | Ford | Renault |
| Model | Sierra | 15 |
| Year Released | 1987 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 1993 cc | 1289 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 204 HP | 59 HP |
| Engine RPM | 6250 RPM | 5500 RPM |
| Torque | 277 Nm | 98 Nm |
| Torque RPM | 4500 RPM | 3500 RPM |
| Engine Bore Size | 90.8 mm | 75 mm |
| Engine Stroke Size | 77 mm | 69 mm |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1250 kg | 965 kg |
| Vehicle Length | 4470 mm | 4270 mm |
| Vehicle Width | 1710 mm | 1640 mm |
| Vehicle Height | 1380 mm | 1310 mm |
| Wheelbase Size | 2500 mm | 2440 mm |
