2007 Opel Astra vs. 1971 Renault 15
To start off, 2007 Opel Astra is newer by 36 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 1,796 cc (4 cylinders), 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (138 HP @ 5600 RPM) has 49 more horse power than 1971 Renault 15. (89 HP @ 5500 RPM). In normal driving conditions, 2007 Opel Astra should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 258 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, 2007 Opel Astra (175 Nm @ 3800 RPM) has 50 more torque (in Nm) than 1971 Renault 15. (125 Nm @ 3000 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 2007 Opel Astra | 1971 Renault 15 | |
| Make | Opel | Renault |
| Model | Astra | 15 |
| Year Released | 2007 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 1796 cc | 1565 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 138 HP | 89 HP |
| Engine RPM | 5600 RPM | 5500 RPM |
| Torque | 175 Nm | 125 Nm |
| Torque RPM | 3800 RPM | 3000 RPM |
| Engine Bore Size | 80.5 mm | 77 mm |
| Engine Stroke Size | 88.2 mm | 84 mm |
| Engine Compression Ratio | 10.5:1 | 9.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1278 kg | 1020 kg |
| Vehicle Length | 4300 mm | 4260 mm |
| Vehicle Width | 1760 mm | 1640 mm |
| Vehicle Height | 1440 mm | 1320 mm |
| Wheelbase Size | 2620 mm | 2440 mm |
| Fuel Tank Capacity | 52 L | 38 L |
