2004 BMW 525 vs. 1976 BMW 630
To start off, 2004 BMW 525 is newer by 28 year(s). Which means there will be less support and parts availability for 1976 BMW 630. In addition, the cost of maintenance, including insurance, on 1976 BMW 630 would be higher. At 2,986 cc (6 cylinders), 1976 BMW 630 is equipped with a bigger engine. In terms of performance, 2004 BMW 525 (174 HP @ 4000 RPM) has 1 more horse power than 1976 BMW 630. (173 HP @ 5500 RPM). In normal driving conditions, 2004 BMW 525 should accelerate faster than 1976 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 525 weights approximately 247 kg more than 1976 BMW 630. 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, 2004 BMW 525 (410 Nm @ 2000 RPM) has 159 more torque (in Nm) than 1976 BMW 630. (251 Nm @ 4500 RPM). This means 2004 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 1976 BMW 630.
Compare all specifications:
| 2004 BMW 525 | 1976 BMW 630 | |
| Make | BMW | BMW |
| Model | 525 | 630 |
| Year Released | 2004 | 1976 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2986 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 174 HP | 173 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 410 Nm | 251 Nm |
| Torque RPM | 2000 RPM | 4500 RPM |
| Engine Bore Size | 84.1 mm | 89 mm |
| Engine Stroke Size | 75.1 mm | 80 mm |
| Engine Compression Ratio | 17.0:1 | 8.0:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1705 kg | 1458 kg |
| Vehicle Length | 4850 mm | 4760 mm |
| Vehicle Width | 1850 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1390 mm |
| Wheelbase Size | 2890 mm | 2630 mm |
