1973 BMW 1502 vs. 2013 BMW 5 Series
To start off, 2013 BMW 5 Series is newer by 40 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 2,979 cc (6 cylinders), 2013 BMW 5 Series is equipped with a bigger engine. In terms of performance, 2013 BMW 5 Series (296 HP @ 5800 RPM) has 211 more horse power than 1973 BMW 1502. (85 HP @ 5800 RPM) In normal driving conditions, 2013 BMW 5 Series should accelerate faster than 1973 BMW 1502. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 5 Series weights approximately 930 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, 2013 BMW 5 Series (407 Nm @ 5000 RPM) has 277 more torque (in Nm) than 1973 BMW 1502. (130 Nm @ 3500 RPM). This means 2013 BMW 5 Series will have an easier job in driving up hills or pulling heavy equipment than 1973 BMW 1502.
Compare all specifications:
| 1973 BMW 1502 | 2013 BMW 5 Series | |
| Make | BMW | BMW |
| Model | 1502 | 5 Series |
| Year Released | 1973 | 2013 |
| Engine Position | Front | Front |
| Engine Size | 1573 cc | 2979 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 296 HP |
| Engine RPM | 5800 RPM | 5800 RPM |
| Torque | 130 Nm | 407 Nm |
| Torque RPM | 3500 RPM | 5000 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 71 mm | 89 mm |
| Engine Compression Ratio | 8.6:1 | 10.2 :1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 930 kg | 1860 kg |
| Vehicle Length | 4240 mm | 4905 mm |
| Vehicle Width | 1600 mm | 2094 mm |
| Vehicle Height | 1420 mm | 1464 mm |
| Wheelbase Size | 2510 mm | 2968 mm |
| Fuel Tank Capacity | 50 L | 70 L |
