1976 BMW 630 vs. 2008 BMW X5
To start off, 2008 BMW X5 is newer by 32 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 4,797 cc (8 cylinders), 2008 BMW X5 is equipped with a bigger engine. In terms of performance, 2008 BMW X5 (355 HP @ 6200 RPM) has 182 more horse power than 1976 BMW 630. (173 HP @ 5500 RPM) In normal driving conditions, 2008 BMW X5 should accelerate faster than 1976 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X5 weights approximately 742 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.
Because 2008 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 1976 BMW 630. In wet, icy, snow, or gravel driving conditions, 2008 BMW X5 will offer significantly more control. 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, 2008 BMW X5 (490 Nm @ 3600 RPM) has 239 more torque (in Nm) than 1976 BMW 630. (251 Nm @ 4500 RPM). This means 2008 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 1976 BMW 630.
Compare all specifications:
| 1976 BMW 630 | 2008 BMW X5 | |
| Make | BMW | BMW |
| Model | 630 | X5 |
| Year Released | 1976 | 2008 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 4797 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 173 HP | 355 HP |
| Engine RPM | 5500 RPM | 6200 RPM |
| Torque | 251 Nm | 490 Nm |
| Torque RPM | 4500 RPM | 3600 RPM |
| Engine Bore Size | 89 mm | 93 mm |
| Engine Stroke Size | 80 mm | 88.3 mm |
| Engine Compression Ratio | 8.0:1 | 11.0:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1458 kg | 2200 kg |
| Vehicle Length | 4760 mm | 4670 mm |
| Vehicle Width | 1760 mm | 1880 mm |
| Vehicle Height | 1390 mm | 1710 mm |
| Wheelbase Size | 2630 mm | 2830 mm |
