2006 Ford S-Max vs. 1971 Renault 15
To start off, 2006 Ford S-Max is newer by 35 year(s). Which means there will be less support and parts availability for 1971 Renault 15. In addition, the cost of maintenance, including insurance, on 1971 Renault 15 would be higher. At 1,997 cc (4 cylinders), 2006 Ford S-Max is equipped with a bigger engine. In terms of performance, 2006 Ford S-Max (129 HP @ 4000 RPM) has 40 more horse power than 1971 Renault 15. (89 HP @ 5500 RPM). In normal driving conditions, 2006 Ford S-Max should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2006 Ford S-Max weights approximately 723 kg more than 1971 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, 2006 Ford S-Max (320 Nm @ 1750 RPM) has 195 more torque (in Nm) than 1971 Renault 15. (125 Nm @ 3000 RPM). This means 2006 Ford S-Max will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 2006 Ford S-Max | 1971 Renault 15 | |
| Make | Ford | Renault |
| Model | S-Max | 15 |
| Year Released | 2006 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 1565 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 129 HP | 89 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 320 Nm | 125 Nm |
| Torque RPM | 1750 RPM | 3000 RPM |
| Engine Bore Size | 85 mm | 77 mm |
| Engine Stroke Size | 88 mm | 84 mm |
| Engine Compression Ratio | 18.0:1 | 9.3:1 |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1743 kg | 1020 kg |
| Vehicle Length | 4770 mm | 4260 mm |
| Vehicle Width | 1890 mm | 1640 mm |
| Vehicle Height | 1660 mm | 1320 mm |
| Wheelbase Size | 2860 mm | 2440 mm |
| Fuel Tank Capacity | 70 L | 38 L |
