1981 Alfa Romeo Alfa 6 vs. 1974 Renault 15
To start off, 1981 Alfa Romeo Alfa 6 is newer by 7 year(s). Which means there will be less support and parts availability for 1974 Renault 15. In addition, the cost of maintenance, including insurance, on 1974 Renault 15 would be higher. At 2,494 cc (5 cylinders), 1981 Alfa Romeo Alfa 6 is equipped with a bigger engine. In terms of performance, 1981 Alfa Romeo Alfa 6 (104 HP @ 4300 RPM) has 45 more horse power than 1974 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 1981 Alfa Romeo Alfa 6 should accelerate faster than 1974 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 1981 Alfa Romeo Alfa 6 weights approximately 615 kg more than 1974 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, 1981 Alfa Romeo Alfa 6 (206 Nm @ 2400 RPM) has 108 more torque (in Nm) than 1974 Renault 15. (98 Nm @ 3500 RPM). This means 1981 Alfa Romeo Alfa 6 will have an easier job in driving up hills or pulling heavy equipment than 1974 Renault 15.
Compare all specifications:
| 1981 Alfa Romeo Alfa 6 | 1974 Renault 15 | |
| Make | Alfa Romeo | Renault |
| Model | Alfa 6 | 15 |
| Year Released | 1981 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 1287 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 104 HP | 59 HP |
| Engine RPM | 4300 RPM | 5500 RPM |
| Torque | 206 Nm | 98 Nm |
| Torque RPM | 2400 RPM | 3500 RPM |
| Engine Bore Size | 88 mm | 75 mm |
| Engine Stroke Size | 82 mm | 69 mm |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1580 kg | 965 kg |
| Vehicle Length | 4690 mm | 4270 mm |
| Vehicle Width | 1690 mm | 1640 mm |
| Vehicle Height | 1430 mm | 1310 mm |
| Wheelbase Size | 2610 mm | 2440 mm |
| Fuel Tank Capacity | 50 L | 55 L |
