2009 BMW X5 vs. 1979 Renault 15
To start off, 2009 BMW X5 is newer by 30 year(s). Which means there will be less support and parts availability for 1979 Renault 15. In addition, the cost of maintenance, including insurance, on 1979 Renault 15 would be higher. At 4,799 cc (8 cylinders), 2009 BMW X5 is equipped with a bigger engine. In terms of performance, 2009 BMW X5 (350 HP @ 6300 RPM) has 291 more horse power than 1979 Renault 15. (59 HP @ 5500 RPM). In normal driving conditions, 2009 BMW X5 should accelerate faster than 1979 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X5 weights approximately 560 kg more than 1979 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, 2009 BMW X5 (476 Nm @ 3400 RPM) has 378 more torque (in Nm) than 1979 Renault 15. (98 Nm @ 3500 RPM). This means 2009 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1979 Renault 15.
Compare all specifications:
| 2009 BMW X5 | 1979 Renault 15 | |
| Make | BMW | Renault |
| Model | X5 | 15 |
| Year Released | 2009 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 1289 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 350 HP | 59 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 476 Nm | 98 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 93 mm | 75 mm |
| Engine Stroke Size | 88.3 mm | 69 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Doors | 5 doors | 3 doors |
| Vehicle Weight | 1525 kg | 965 kg |
| Vehicle Length | 4860 mm | 4260 mm |
| Vehicle Width | 1940 mm | 1640 mm |
| Vehicle Height | 1740 mm | 1320 mm |
| Wheelbase Size | 2940 mm | 2440 mm |
| Fuel Tank Capacity | 85 L | 55 L |
