1976 BMW 633 vs. 2013 BMW X6
To start off, 2013 BMW X6 is newer by 37 year(s). Which means there will be less support and parts availability for 1976 BMW 633. In addition, the cost of maintenance, including insurance, on 1976 BMW 633 would be higher. At 4,395 cc (8 cylinders), 2013 BMW X6 is equipped with a bigger engine. In terms of performance, 2013 BMW X6 (296 HP @ 5500 RPM) has 99 more horse power than 1976 BMW 633. (197 HP @ 5500 RPM) In normal driving conditions, 2013 BMW X6 should accelerate faster than 1976 BMW 633. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW X6 weights approximately 900 kg more than 1976 BMW 633. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 BMW X6 is all wheel drive (AWD), it will have significant more traction and grip than 1976 BMW 633. In wet, icy, snow, or gravel driving conditions, 2013 BMW X6 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, 2013 BMW X6 (610 Nm @ 4500 RPM) has 325 more torque (in Nm) than 1976 BMW 633. (285 Nm @ 4250 RPM). This means 2013 BMW X6 will have an easier job in driving up hills or pulling heavy equipment than 1976 BMW 633. 2013 BMW X6 has automatic transmission and 1976 BMW 633 has manual transmission. 1976 BMW 633 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 BMW X6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1976 BMW 633 | 2013 BMW X6 | |
| Make | BMW | BMW |
| Model | 633 | X6 |
| Year Released | 1976 | 2013 |
| Body Type | Coupe | Crossover |
| Engine Position | Front | Front |
| Engine Size | 3210 cc | 4395 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 296 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 285 Nm | 610 Nm |
| Torque RPM | 4250 RPM | 4500 RPM |
| Engine Compression Ratio | 9.0:1 | 10.0 : 1 |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 8-speed automatic |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1470 kg | 2370 kg |
| Vehicle Length | 4760 mm | 4877 mm |
| Vehicle Width | 1760 mm | 2195 mm |
| Vehicle Height | 1390 mm | 1690 mm |
| Wheelbase Size | 2630 mm | 2933 mm |
| Fuel Tank Capacity | 70 L | 85 L |
