1985 Opel Monza vs. 1971 Renault 15
To start off, 1985 Opel Monza is newer by 14 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 2,197 cc (4 cylinders), 1985 Opel Monza is equipped with a bigger engine. In terms of performance, 1985 Opel Monza (114 HP @ 4800 RPM) has 55 more horse power than 1971 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 1985 Opel Monza should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 1985 Opel Monza weights approximately 361 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, 1985 Opel Monza (186 Nm @ 2800 RPM) has 88 more torque (in Nm) than 1971 Renault 15. (98 Nm @ 3500 RPM). This means 1985 Opel Monza will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 1985 Opel Monza | 1971 Renault 15 | |
| Make | Opel | Renault |
| Model | Monza | 15 |
| Year Released | 1985 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2197 cc | 1289 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 114 HP | 59 HP |
| Engine RPM | 4800 RPM | 5500 RPM |
| Torque | 186 Nm | 98 Nm |
| Torque RPM | 2800 RPM | 3500 RPM |
| Engine Bore Size | 95 mm | 75 mm |
| Engine Stroke Size | 77.5 mm | 69 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1326 kg | 965 kg |
| Vehicle Length | 4700 mm | 4270 mm |
| Vehicle Width | 1740 mm | 1640 mm |
| Vehicle Height | 1390 mm | 1320 mm |
| Wheelbase Size | 2670 mm | 2440 mm |
