2006 BMW Z4 vs. 1976 Renault 15
To start off, 2006 BMW Z4 is newer by 30 year(s). Which means there will be less support and parts availability for 1976 Renault 15. In addition, the cost of maintenance, including insurance, on 1976 Renault 15 would be higher. At 2,501 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (185 HP @ 6000 RPM) has 87 more horse power than 1976 Renault 15. (98 HP @ 5750 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 1976 Renault 15. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW Z4 weights approximately 270 kg more than 1976 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, 2006 BMW Z4 (237 Nm @ 3500 RPM) has 102 more torque (in Nm) than 1976 Renault 15. (135 Nm @ 3500 RPM). This means 2006 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1976 Renault 15.
Compare all specifications:
| 2006 BMW Z4 | 1976 Renault 15 | |
| Make | BMW | Renault |
| Model | Z4 | 15 |
| Year Released | 2006 | 1976 |
| Engine Position | Front | Front |
| Engine Size | 2501 cc | 1647 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 185 HP | 98 HP |
| Engine RPM | 6000 RPM | 5750 RPM |
| Torque | 237 Nm | 135 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.1 mm | 79 mm |
| Engine Stroke Size | 74.9 mm | 84 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1330 kg | 1060 kg |
| Vehicle Length | 4100 mm | 4270 mm |
| Vehicle Width | 1790 mm | 1640 mm |
| Vehicle Height | 1300 mm | 1320 mm |
| Wheelbase Size | 2500 mm | 2450 mm |
| Fuel Tank Capacity | 55 L | 56 L |
