1971 Austin 3 vs. 1973 BMW 1502
To start off, 1973 BMW 1502 is newer by 2 year(s). Which means there will be less support and parts availability for 1971 Austin 3. In addition, the cost of maintenance, including insurance, on 1971 Austin 3 would be higher. At 2,910 cc (6 cylinders), 1971 Austin 3 is equipped with a bigger engine. In terms of performance, 1971 Austin 3 (123 HP @ 4500 RPM) has 38 more horse power than 1973 BMW 1502. (85 HP @ 5800 RPM). In normal driving conditions, 1971 Austin 3 should accelerate faster than 1973 BMW 1502. With that said, vehicle weight also plays an important factor in acceleration. 1971 Austin 3 weights approximately 560 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, 1971 Austin 3 (218 Nm @ 3000 RPM) has 88 more torque (in Nm) than 1973 BMW 1502. (130 Nm @ 3500 RPM). This means 1971 Austin 3 will have an easier job in driving up hills or pulling heavy equipment than 1973 BMW 1502.
Compare all specifications:
| 1971 Austin 3 | 1973 BMW 1502 | |
| Make | Austin | BMW |
| Model | 3 | 1502 |
| Year Released | 1971 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 2910 cc | 1573 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 85 HP |
| Engine RPM | 4500 RPM | 5800 RPM |
| Torque | 218 Nm | 130 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Engine Bore Size | 83.4 mm | 84 mm |
| Engine Stroke Size | 88.9 mm | 71 mm |
| Engine Compression Ratio | 9.0:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1490 kg | 930 kg |
| Vehicle Length | 4720 mm | 4240 mm |
| Vehicle Width | 1700 mm | 1600 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Wheelbase Size | 2940 mm | 2510 mm |
| Fuel Tank Capacity | 65 L | 50 L |
