 | BMW 520d
Swift Conqueror 645 |  |
 Performance | |  Weight |
The BMW 520d with a Swift Conqueror 645 with an actual weight of 1844 kg is a match just suitable for most journeys but also with some limitations.
The motor preformance of the BMW is in general good. But the weight of the Swift with a normally distributed User Payload (200 kg in the caravan and 200 kg in the car including passengers), is (too) heavy. Move the luggage from the caravan to the car and drive not too fast and carefully. Remember to load your caravan correctly, insuring that the noseweight of the caravan is sufficient and the weight is distributed properly. But even so, a starting caravan driver is better off choosing a smaller and less heavy caravan!
Flat roads
Towing Performance
248
235
Mountains
Risk of snaking
287
90
Weight ratio: 95% (108% of kerbweight)
1844 kg
1940 kg
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| BMW 520d
Swift Conqueror 645 | |
Actual Weights
- Swift Conqueror 645: 1844 kg.
- BMW 520d: 1940 kg.
- Noseweight: 100 kg.
- Actual weight ratio: 95%.
Performance
- The engine's performance is generally good on flat roads (performance score to compare 248 points).
- Speeds of 78 mph (126 km/h) to 83 mph (134 km/h) are often quite possible.
- There is more than enough power at low engine speeds (score to compare 235 points).
- Higher revs (1600 rpm) are usually not necessary on flat roads, under most circumstances.
- Acceleration from 0-62 mph (0-100 km/h) is theoretically possible in 16.8 sec.
- In the mountains the performance is generally very good (score to compare 287 points).
- No problems are to be expected on steep mountain roads. Hill starts are possible on steep slopes up to 18%.
- On motorway inclines higher revs (2600 rpm) are needed.
- A speed of 68 mph (110 km/h) is usually possible on most motorway inclines.
Weight
- The towing limit of the BMW is sufficient (check this in your vehicle documents).
- If you passed your driving test after 1 January 1997, you will need a B+E (or B96) driving license.
- The caravan is too heavily loaded.
- Weight ratio between the laden caravan and the loaded car is 95%. Common in the UK: the weight ratio between the laden caravan and the kerbweight of the car is 108%.
- The risk of snaking at higher speeds, strong side winds and thoughtless driving is great. Even if the combination normally feels stable, the forces by deflection side to side are so great that it could be dangerous. Only if the driver has a lot of knowledge and experience in driving a caravan it should be safe to drive slowly. Proper and careful loading is essential! An electronic stability system in the car and / or on the caravan is definitely recommended.
- Recommended noseweight is 100 kg.
- Safe speed up to 56 mph (90 km/h).
- Stability and safety score to compare is 90 points.
If the caravan starts to snake you should reduce your speed and slow down directly! Lift your feet off the accelerator and brake gradually. Hold the steering wheel into a fixed position.
Conclusion
- Performance is good.
- Proper and careful loading is essential!
- It's a fairly good match, only for experienced (caravan) drivers and with some limitations.
Influence of User Payload on stability
Weight distribution and noseweight are vital in obtaining a stable caravan.
Distribute the User Payload by yourself in the caravan and the car and then find out the stability rating of your loading configuration.
More information
More detailed information and specifically calculated top speeds and performance of this outfit.
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