1978 Buick Regal vs. 1971 Renault 15
To start off, 1978 Buick Regal is newer by 7 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 3,214 cc (6 cylinders), 1978 Buick Regal is equipped with a bigger engine. In terms of performance, 1978 Buick Regal (90 HP @ 3600 RPM) has 31 more horse power than 1971 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 1978 Buick Regal should accelerate faster than 1971 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 1978 Buick Regal weights approximately 465 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, 1978 Buick Regal (224 Nm @ 2000 RPM) has 126 more torque (in Nm) than 1971 Renault 15. (98 Nm @ 3500 RPM). This means 1978 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 1971 Renault 15.
Compare all specifications:
| 1978 Buick Regal | 1971 Renault 15 | |
| Make | Buick | Renault |
| Model | Regal | 15 |
| Year Released | 1978 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 3214 cc | 1289 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 90 HP | 59 HP |
| Engine RPM | 3600 RPM | 5500 RPM |
| Torque | 224 Nm | 98 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1430 kg | 965 kg |
| Vehicle Length | 5090 mm | 4270 mm |
| Vehicle Width | 1840 mm | 1640 mm |
| Vehicle Height | 1370 mm | 1320 mm |
| Wheelbase Size | 2750 mm | 2440 mm |
