2006 BMW 645 vs. 1947 Citroen 15
To start off, 2006 BMW 645 is newer by 59 year(s). Which means there will be less support and parts availability for 1947 Citroen 15. In addition, the cost of maintenance, including insurance, on 1947 Citroen 15 would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 252 more horse power than 1947 Citroen 15. (76 HP @ 3800 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 1947 Citroen 15. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 367 kg more than 1947 Citroen 15. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW 645 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 2006 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 1947 Citroen 15, 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 263 more torque (in Nm) than 1947 Citroen 15. (187 Nm @ 2000 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 1947 Citroen 15.
Compare all specifications:
| 2006 BMW 645 | 1947 Citroen 15 | |
| Make | BMW | Citroen |
| Model | 645 | 15 |
| Year Released | 2006 | 1947 |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2867 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 328 HP | 76 HP |
| Engine RPM | 6100 RPM | 3800 RPM |
| Torque | 450 Nm | 187 Nm |
| Torque RPM | 3600 RPM | 2000 RPM |
| Engine Bore Size | 92 mm | 78 mm |
| Engine Stroke Size | 82.7 mm | 100 mm |
| Engine Compression Ratio | 10.0:1 | 6.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1692 kg | 1325 kg |
| Vehicle Length | 4830 mm | 4770 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1570 mm |
| Wheelbase Size | 2790 mm | 3100 mm |
