1974 BMW 1502 vs. 2007 BMW 523
To start off, 2007 BMW 523 is newer by 33 year(s). Which means there will be less support and parts availability for 1974 BMW 1502. In addition, the cost of maintenance, including insurance, on 1974 BMW 1502 would be higher. At 2,497 cc (6 cylinders), 2007 BMW 523 is equipped with a bigger engine. In terms of performance, 2007 BMW 523 (175 HP @ 5800 RPM) has 92 more horse power than 1974 BMW 1502. (83 HP @ 5800 RPM) In normal driving conditions, 2007 BMW 523 should accelerate faster than 1974 BMW 1502. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 523 weights approximately 635 kg more than 1974 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 523 (230 Nm @ 3500 RPM) has 100 more torque (in Nm) than 1974 BMW 1502. (130 Nm @ 3500 RPM). This means 2007 BMW 523 will have an easier job in driving up hills or pulling heavy equipment than 1974 BMW 1502.
Compare all specifications:
| 1974 BMW 1502 | 2007 BMW 523 | |
| Make | BMW | BMW |
| Model | 1502 | 523 |
| Year Released | 1974 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 83 HP | 175 HP |
| Engine RPM | 5800 RPM | 5800 RPM |
| Torque | 130 Nm | 230 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 78.8 mm |
| Engine Stroke Size | 71 mm | 82 mm |
| Engine Compression Ratio | 8.6:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1565 kg |
| Vehicle Length | 4240 mm | 4850 mm |
| Vehicle Width | 1600 mm | 1850 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2510 mm | 2890 mm |
| Fuel Tank Capacity | 50 L | 70 L |
