1974 BMW 1502 vs. 1983 BMW 628
To start off, 1983 BMW 628 is newer by 9 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 2,788 cc (6 cylinders), 1983 BMW 628 is equipped with a bigger engine. In terms of performance, 1983 BMW 628 (181 HP @ 6000 RPM) has 98 more horse power than 1974 BMW 1502. (83 HP @ 5800 RPM) In normal driving conditions, 1983 BMW 628 should accelerate faster than 1974 BMW 1502. With that said, vehicle weight also plays an important factor in acceleration. 1983 BMW 628 weights approximately 540 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, 1983 BMW 628 (241 Nm @ 4000 RPM) has 111 more torque (in Nm) than 1974 BMW 1502. (130 Nm @ 3500 RPM). This means 1983 BMW 628 will have an easier job in driving up hills or pulling heavy equipment than 1974 BMW 1502.
Compare all specifications:
| 1974 BMW 1502 | 1983 BMW 628 | |
| Make | BMW | BMW |
| Model | 1502 | 628 |
| Year Released | 1974 | 1983 |
| Engine Position | Front | Front |
| Engine Size | 1574 cc | 2788 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 83 HP | 181 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 130 Nm | 241 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 71 mm | 80 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 930 kg | 1470 kg |
| Vehicle Length | 4240 mm | 4760 mm |
| Vehicle Width | 1600 mm | 1730 mm |
| Vehicle Height | 1420 mm | 1370 mm |
| Wheelbase Size | 2510 mm | 2640 mm |
| Fuel Tank Capacity | 50 L | 70 L |
