2005 BMW 325 vs. 1986 Renault 21
To start off, 2005 BMW 325 is newer by 19 year(s). Which means there will be less support and parts availability for 1986 Renault 21. In addition, the cost of maintenance, including insurance, on 1986 Renault 21 would be higher. At 2,497 cc (6 cylinders), 2005 BMW 325 is equipped with a bigger engine. In terms of performance, 2005 BMW 325 (215 HP @ 6500 RPM) has 128 more horse power than 1986 Renault 21. (87 HP @ 5500 RPM). In normal driving conditions, 2005 BMW 325 should accelerate faster than 1986 Renault 21. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 325 weights approximately 464 kg more than 1986 Renault 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 BMW 325 (250 Nm @ 2750 RPM) has 112 more torque (in Nm) than 1986 Renault 21. (138 Nm @ 3500 RPM). This means 2005 BMW 325 will have an easier job in driving up hills or pulling heavy equipment than 1986 Renault 21.
Compare all specifications:
| 2005 BMW 325 | 1986 Renault 21 | |
| Make | BMW | Renault |
| Model | 325 | 21 |
| Year Released | 2005 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 1719 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 215 HP | 87 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 250 Nm | 138 Nm |
| Torque RPM | 2750 RPM | 3500 RPM |
| Engine Bore Size | 82 mm | 81 mm |
| Engine Stroke Size | 78.8 mm | 83.5 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1494 kg | 1030 kg |
| Vehicle Length | 4480 mm | 4650 mm |
| Vehicle Width | 1820 mm | 1720 mm |
| Vehicle Height | 1440 mm | 1430 mm |
| Wheelbase Size | 2730 mm | 2760 mm |
| Fuel Tank Capacity | 63 L | 34 L |
