1993 BMW 840 vs. 1973 BMW 525
To start off, 1993 BMW 840 is newer by 20 year(s). Which means there will be less support and parts availability for 1973 BMW 525. In addition, the cost of maintenance, including insurance, on 1973 BMW 525 would be higher. At 3,981 cc (8 cylinders), 1993 BMW 840 is equipped with a bigger engine. In terms of performance, 1993 BMW 840 (282 HP @ 5800 RPM) has 139 more horse power than 1973 BMW 525. (143 HP @ 6000 RPM). In normal driving conditions, 1993 BMW 840 should accelerate faster than 1973 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 1993 BMW 840 weights approximately 450 kg more than 1973 BMW 525. 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, 1993 BMW 840 (400 Nm @ 4500 RPM) has 192 more torque (in Nm) than 1973 BMW 525. (208 Nm @ 4000 RPM). This means 1993 BMW 840 will have an easier job in driving up hills or pulling heavy equipment than 1973 BMW 525.
Compare all specifications:
| 1993 BMW 840 | 1973 BMW 525 | |
| Make | BMW | BMW |
| Model | 840 | 525 |
| Year Released | 1993 | 1973 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3981 cc | 2494 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 282 HP | 143 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 400 Nm | 208 Nm |
| Torque RPM | 4500 RPM | 4000 RPM |
| Engine Bore Size | 89 mm | 86 mm |
| Engine Stroke Size | 80 mm | 71.6 mm |
| Engine Compression Ratio | 10.0:1 | 9.0:1 |
| Top Speed | 249 km/hour | 192 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1830 kg | 1380 kg |
| Vehicle Length | 4790 mm | 4630 mm |
| Vehicle Width | 1860 mm | 1700 mm |
| Vehicle Height | 1350 mm | 1430 mm |
| Wheelbase Size | 2690 mm | 2640 mm |
| Fuel Tank Capacity | 90 L | 70 L |
