1971 BMW Touring vs. 1951 Singer SM 1500
To start off, 1971 BMW Touring is newer by 20 year(s). Which means there will be less support and parts availability for 1951 Singer SM 1500. In addition, the cost of maintenance, including insurance, on 1951 Singer SM 1500 would be higher. At 1,573 cc (4 cylinders), 1971 BMW Touring is equipped with a bigger engine. In terms of performance, 1971 BMW Touring (85 HP @ 5700 RPM) has 38 more horse power than 1951 Singer SM 1500. (47 HP @ 4200 RPM). In normal driving conditions, 1971 BMW Touring should accelerate faster than 1951 Singer SM 1500. With that said, vehicle weight also plays an important factor in acceleration. 1971 BMW Touring weights approximately 190 kg more than 1951 Singer SM 1500. 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 BMW Touring (130 Nm @ 3500 RPM) has 32 more torque (in Nm) than 1951 Singer SM 1500. (98 Nm @ 2200 RPM). This means 1971 BMW Touring will have an easier job in driving up hills or pulling heavy equipment than 1951 Singer SM 1500.
Compare all specifications:
| 1971 BMW Touring | 1951 Singer SM 1500 | |
| Make | BMW | Singer |
| Model | Touring | SM 1500 |
| Year Released | 1971 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 1573 cc | 1495 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 85 HP | 47 HP |
| Engine RPM | 5700 RPM | 4200 RPM |
| Torque | 130 Nm | 98 Nm |
| Torque RPM | 3500 RPM | 2200 RPM |
| Engine Bore Size | 84.1 mm | 73 mm |
| Engine Stroke Size | 71 mm | 89.4 mm |
| Engine Compression Ratio | 8.6:1 | 7.0:1 |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1030 kg | 840 kg |
| Vehicle Length | 4120 mm | 3860 mm |
| Vehicle Width | 1600 mm | 1480 mm |
| Vehicle Height | 1390 mm | 1240 mm |
| Wheelbase Size | 2510 mm | 2320 mm |
