1973 BMW Touring vs. 2007 BMW 525
To start off, 2007 BMW 525 is newer by 34 year(s). Which means there will be less support and parts availability for 1973 BMW Touring. In addition, the cost of maintenance, including insurance, on 1973 BMW Touring would be higher. At 2,497 cc (6 cylinders), 2007 BMW 525 is equipped with a bigger engine. In terms of performance, 2007 BMW 525 (175 HP @ 4000 RPM) has 90 more horse power than 1973 BMW Touring. (85 HP @ 5700 RPM) In normal driving conditions, 2007 BMW 525 should accelerate faster than 1973 BMW Touring. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 525 weights approximately 630 kg more than 1973 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, 2007 BMW 525 (400 Nm @ 2000 RPM) has 270 more torque (in Nm) than 1973 BMW Touring. (130 Nm @ 3500 RPM). This means 2007 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1973 BMW Touring.
Compare all specifications:
| 1973 BMW Touring | 2007 BMW 525 | |
| Make | BMW | BMW |
| Model | Touring | 525 |
| Year Released | 1973 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1573 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 85 HP | 175 HP |
| Engine RPM | 5700 RPM | 4000 RPM |
| Torque | 130 Nm | 400 Nm |
| Torque RPM | 3500 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 71 mm | 75.1 mm |
| Engine Compression Ratio | 8.6:1 | 17.0:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1030 kg | 1660 kg |
| Vehicle Length | 4120 mm | 4850 mm |
| Vehicle Width | 1600 mm | 1850 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2510 mm | 2890 mm |
