1985 BMW 324 vs. 1981 BMW 525
To start off, 1985 BMW 324 is newer by 4 year(s). Which means there will be less support and parts availability for 1981 BMW 525. In addition, the cost of maintenance, including insurance, on 1981 BMW 525 would be higher. At 2,495 cc (6 cylinders), 1981 BMW 525 is equipped with a bigger engine. In terms of performance, 1981 BMW 525 (148 HP @ 5500 RPM) has 63 more horse power than 1985 BMW 324. (85 HP @ 4600 RPM) In normal driving conditions, 1981 BMW 525 should accelerate faster than 1985 BMW 324. With that said, vehicle weight also plays an important factor in acceleration. 1981 BMW 525 weights approximately 20 kg more than 1985 BMW 324. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1981 BMW 525 (215 Nm @ 4000 RPM) has 63 more torque (in Nm) than 1985 BMW 324. (152 Nm @ 2500 RPM). This means 1981 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1985 BMW 324.
Compare all specifications:
| 1985 BMW 324 | 1981 BMW 525 | |
| Make | BMW | BMW |
| Model | 324 | 525 |
| Year Released | 1985 | 1981 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2495 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 85 HP | 148 HP |
| Engine RPM | 4600 RPM | 5500 RPM |
| Torque | 152 Nm | 215 Nm |
| Torque RPM | 2500 RPM | 4000 RPM |
| Engine Bore Size | 80 mm | 86.1 mm |
| Engine Stroke Size | 81 mm | 71.6 mm |
| Engine Compression Ratio | 22.0:1 | 9.6:1 |
| Acceleration 0-100mph | 15.5 seconds | 8.6 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1260 kg | 1280 kg |
| Vehicle Length | 4330 mm | 4780 mm |
| Vehicle Width | 1650 mm | 1810 mm |
| Vehicle Height | 1390 mm | 1440 mm |
| Wheelbase Size | 2580 mm | 2630 mm |
| Fuel Consumption | 7.1 L/100km | 7.2 L/100km |
| Fuel Consumption City | 8.9 L/100km | 13.1 L/100km |
| Fuel Consumption Overall | 5.6 L/100km | 9.4 L/100km |
| Fuel Tank Capacity | 55 L | 70 L |
