2009 BMW 525 vs. 1971 BMW Touring
To start off, 2009 BMW 525 is newer by 38 year(s). Which means there will be less support and parts availability for 1971 BMW Touring. In addition, the cost of maintenance, including insurance, on 1971 BMW Touring would be higher. At 2,497 cc (6 cylinders), 2009 BMW 525 is equipped with a bigger engine. In terms of performance, 2009 BMW 525 (215 HP @ 6500 RPM) has 130 more horse power than 1971 BMW Touring. (85 HP @ 5700 RPM). In normal driving conditions, 2009 BMW 525 should accelerate faster than 1971 BMW Touring. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 525 weights approximately 465 kg more than 1971 BMW Touring. 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 525 (250 Nm @ 2900 RPM) has 120 more torque (in Nm) than 1971 BMW Touring. (130 Nm @ 3500 RPM). This means 2009 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1971 BMW Touring.
Compare all specifications:
| 2009 BMW 525 | 1971 BMW Touring | |
| Make | BMW | BMW |
| Model | 525 | Touring |
| Year Released | 2009 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 1573 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 215 HP | 85 HP |
| Engine RPM | 6500 RPM | 5700 RPM |
| Torque | 250 Nm | 130 Nm |
| Torque RPM | 2900 RPM | 3500 RPM |
| Engine Bore Size | 82 mm | 84.1 mm |
| Engine Stroke Size | 78.8 mm | 71 mm |
| Engine Compression Ratio | 11.0:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1495 kg | 1030 kg |
| Vehicle Length | 4850 mm | 4120 mm |
| Vehicle Width | 1470 mm | 1600 mm |
| Vehicle Height | 1850 mm | 1390 mm |
| Wheelbase Size | 2890 mm | 2510 mm |
