1973 BMW 1502 vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 34 year(s). Which means there will be less support and parts availability for 1973 BMW 1502. In addition, the cost of maintenance, including insurance, on 1973 BMW 1502 would be higher. At 2,495 cc (6 cylinders), 2007 BMW 525 is equipped with a bigger engine. In terms of performance, 2007 BMW 525 (215 HP @ 6500 RPM) has 130 more horse power than 1973 BMW 1502. (85 HP @ 5800 RPM) In normal driving conditions, 2007 BMW 525 should accelerate faster than 1973 BMW 1502. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 525 weights approximately 545 kg more than 1973 BMW 1502. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2007 BMW 525 (250 Nm @ 2900 RPM) has 120 more torque (in Nm) than 1973 BMW 1502. (130 Nm @ 3500 RPM). This means 2007 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1973 BMW 1502.
Compare all specifications:
| 1973 BMW 1502 | 2007 BMW 525 | |
| Make | BMW | BMW |
| Model | 1502 | 525 |
| Year Released | 1973 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1573 cc | 2495 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 215 HP |
| Engine RPM | 5800 RPM | 6500 RPM |
| Torque | 130 Nm | 250 Nm |
| Torque RPM | 3500 RPM | 2900 RPM |
| Engine Bore Size | 84 mm | 82 mm |
| Engine Stroke Size | 71 mm | 78.8 mm |
| Engine Compression Ratio | 8.6:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 930 kg | 1475 kg |
| Vehicle Length | 4240 mm | 4850 mm |
| Vehicle Width | 1600 mm | 1470 mm |
| Vehicle Height | 1420 mm | 1850 mm |
| Wheelbase Size | 2510 mm | 2890 mm |
| Fuel Tank Capacity | 50 L | 70 L |
