1991 Opel Astra vs. 1971 Renault 15
To start off, 1991 Opel Astra is newer by 20 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 1,686 cc (4 cylinders), 1991 Opel Astra is equipped with a bigger engine. In terms of performance, 1971 Renault 15 (89 HP @ 5500 RPM) has 7 more horse power than 1991 Opel Astra. (82 HP @ 4400 RPM) In normal driving conditions, 1971 Renault 15 should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 1991 Opel Astra weights approximately 110 kg more than 1971 Renault 15.
Let's talk about torque, 1991 Opel Astra (168 Nm @ 2400 RPM) has 43 more torque (in Nm) than 1971 Renault 15. (125 Nm @ 3000 RPM). This means 1991 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 1991 Opel Astra | 1971 Renault 15 | |
| Make | Opel | Renault |
| Model | Astra | 15 |
| Year Released | 1991 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 1686 cc | 1565 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 82 HP | 89 HP |
| Engine RPM | 4400 RPM | 5500 RPM |
| Torque | 168 Nm | 125 Nm |
| Torque RPM | 2400 RPM | 3000 RPM |
| Engine Compression Ratio | 22.0:1 | 9.3:1 |
| Fuel Type | Diesel | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1130 kg | 1020 kg |
| Vehicle Length | 4060 mm | 4260 mm |
| Vehicle Width | 1690 mm | 1640 mm |
| Vehicle Height | 1430 mm | 1320 mm |
| Wheelbase Size | 2640 mm | 2440 mm |
| Fuel Tank Capacity | 75 L | 38 L |
