2006 BMW 525 vs. 1958 BMW 503
To start off, 2006 BMW 525 is newer by 48 year(s). Which means there will be less support and parts availability for 1958 BMW 503. In addition, the cost of maintenance, including insurance, on 1958 BMW 503 would be higher. At 3,168 cc (8 cylinders), 1958 BMW 503 is equipped with a bigger engine. In terms of performance, 2006 BMW 525 (215 HP @ 6500 RPM) has 77 more horse power than 1958 BMW 503. (138 HP @ 4800 RPM). In normal driving conditions, 2006 BMW 525 should accelerate faster than 1958 BMW 503. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 525 weights approximately 180 kg more than 1958 BMW 503. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2006 BMW 525 (251 Nm @ 2750 RPM) has 29 more torque (in Nm) than 1958 BMW 503. (222 Nm @ 2500 RPM). This means 2006 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1958 BMW 503.
Compare all specifications:
| 2006 BMW 525 | 1958 BMW 503 | |
| Make | BMW | BMW |
| Model | 525 | 503 |
| Year Released | 2006 | 1958 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 3168 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 215 HP | 138 HP |
| Engine RPM | 6500 RPM | 4800 RPM |
| Torque | 251 Nm | 222 Nm |
| Torque RPM | 2750 RPM | 2500 RPM |
| Engine Bore Size | 78.8 mm | 82 mm |
| Engine Stroke Size | 82 mm | 75 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1680 kg | 1500 kg |
| Vehicle Length | 4850 mm | 4760 mm |
| Vehicle Width | 1850 mm | 1710 mm |
| Vehicle Height | 1500 mm | 1400 mm |
| Wheelbase Size | 2840 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 75 L |
