1973 BMW 1502 vs. 1999 Opel Astra
To start off, 1999 Opel Astra is newer by 26 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 1,573 cc (4 cylinders), 1973 BMW 1502 is equipped with a bigger engine. In terms of performance, 1999 Opel Astra (89 HP @ 6000 RPM) has 4 more horse power than 1973 BMW 1502. (85 HP @ 5800 RPM) In normal driving conditions, 1999 Opel Astra should accelerate faster than 1973 BMW 1502. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Astra weights approximately 220 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, 1973 BMW 1502 (130 Nm @ 3500 RPM) has 5 more torque (in Nm) than 1999 Opel Astra. (125 Nm @ 4000 RPM). This means 1973 BMW 1502 will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Astra.
Compare all specifications:
| 1973 BMW 1502 | 1999 Opel Astra | |
| Make | BMW | Opel |
| Model | 1502 | Astra |
| Year Released | 1973 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1573 cc | 1389 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 89 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 130 Nm | 125 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 77.6 mm |
| Engine Stroke Size | 71 mm | 73.4 mm |
| Engine Compression Ratio | 8.6:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 930 kg | 1150 kg |
| Vehicle Length | 4240 mm | 4250 mm |
| Vehicle Width | 1600 mm | 1690 mm |
| Vehicle Height | 1420 mm | 1410 mm |
| Wheelbase Size | 2510 mm | 2620 mm |
