2008 BMW Z4 vs. 1976 BMW 630
To start off, 2008 BMW Z4 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 2,986 cc (6 cylinders), 1976 BMW 630 is equipped with a bigger engine. In terms of performance, 1976 BMW 630 (182 HP @ 5800 RPM) has 34 more horse power than 2008 BMW Z4. (148 HP @ 6200 RPM) In normal driving conditions, 1976 BMW 630 should accelerate faster than 2008 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 1976 BMW 630 weights approximately 156 kg more than 2008 BMW Z4. 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, 1976 BMW 630 (255 Nm @ 3500 RPM) has 55 more torque (in Nm) than 2008 BMW Z4. (200 Nm @ 3600 RPM). This means 1976 BMW 630 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4.
Compare all specifications:
| 2008 BMW Z4 | 1976 BMW 630 | |
| Make | BMW | BMW |
| Model | Z4 | 630 |
| Year Released | 2008 | 1976 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2986 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 148 HP | 182 HP |
| Engine RPM | 6200 RPM | 5800 RPM |
| Torque | 200 Nm | 255 Nm |
| Torque RPM | 3600 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 89 mm |
| Engine Stroke Size | 90 mm | 80 mm |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Top Speed | 220 km/hour | 211 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1295 kg | 1451 kg |
| Vehicle Length | 4100 mm | 4760 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1310 mm | 1390 mm |
| Wheelbase Size | 2500 mm | 2630 mm |
