1973 BMW 1502 vs. 2009 BMW 650
To start off, 2009 BMW 650 is newer by 36 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 4,799 cc (8 cylinders), 2009 BMW 650 is equipped with a bigger engine. In terms of performance, 2009 BMW 650 (362 HP @ 6300 RPM) has 277 more horse power than 1973 BMW 1502. (85 HP @ 5800 RPM) In normal driving conditions, 2009 BMW 650 should accelerate faster than 1973 BMW 1502. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 650 weights approximately 595 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, 2009 BMW 650 (490 Nm @ 3400 RPM) has 360 more torque (in Nm) than 1973 BMW 1502. (130 Nm @ 3500 RPM). This means 2009 BMW 650 will have an easier job in driving up hills or pulling heavy equipment than 1973 BMW 1502.
Compare all specifications:
| 1973 BMW 1502 | 2009 BMW 650 | |
| Make | BMW | BMW |
| Model | 1502 | 650 |
| Year Released | 1973 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 1573 cc | 4799 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 362 HP |
| Engine RPM | 5800 RPM | 6300 RPM |
| Torque | 130 Nm | 490 Nm |
| Torque RPM | 3500 RPM | 3400 RPM |
| Engine Compression Ratio | 8.6:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 930 kg | 1525 kg |
| Vehicle Length | 4240 mm | 4830 mm |
| Vehicle Width | 1600 mm | 1380 mm |
| Vehicle Height | 1420 mm | 1860 mm |
| Wheelbase Size | 2510 mm | 2790 mm |
| Fuel Tank Capacity | 50 L | 70 L |
