1979 BMW 633 vs. 2007 Citroen C4
To start off, 2007 Citroen C4 is newer by 28 year(s). Which means there will be less support and parts availability for 1979 BMW 633. In addition, the cost of maintenance, including insurance, on 1979 BMW 633 would be higher. At 3,210 cc (6 cylinders), 1979 BMW 633 is equipped with a bigger engine. In terms of performance, 1979 BMW 633 (194 HP @ 5500 RPM) has 60 more horse power than 2007 Citroen C4. (134 HP @ 4000 RPM). In normal driving conditions, 1979 BMW 633 should accelerate faster than 2007 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 1979 BMW 633 weights approximately 16 kg more than 2007 Citroen C4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1979 BMW 633 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1979 BMW 633. However, in wet, icy, snow, or gravel driving conditions, 2007 Citroen C4, being front wheel drive (FWD), will offer much better control with better grip. 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, 2007 Citroen C4 (320 Nm @ 2000 RPM) has 35 more torque (in Nm) than 1979 BMW 633. (285 Nm @ 4300 RPM). This means 2007 Citroen C4 will have an easier job in driving up hills or pulling heavy equipment than 1979 BMW 633.
Compare all specifications:
| 1979 BMW 633 | 2007 Citroen C4 | |
| Make | BMW | Citroen |
| Model | 633 | C4 |
| Year Released | 1979 | 2007 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3210 cc | 1997 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 194 HP | 134 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 285 Nm | 320 Nm |
| Torque RPM | 4300 RPM | 2000 RPM |
| Engine Bore Size | 89 mm | 85 mm |
| Engine Stroke Size | 86 mm | 88 mm |
| Engine Compression Ratio | 9.3:1 | 18.0:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 3 doors |
| Vehicle Weight | 1470 kg | 1454 kg |
| Vehicle Length | 4760 mm | 4280 mm |
| Vehicle Width | 1760 mm | 1780 mm |
| Vehicle Height | 1390 mm | 1460 mm |
| Wheelbase Size | 2640 mm | 2610 mm |
| Fuel Tank Capacity | 70 L | 60 L |
