The BMW X5 30d with a Swift Challenger 620 with an actual weight of 1774 kg is in general a good match and suitable for all journeys on all kinds of roads.
The motor preformance of the BMW is in general very good. And also 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 not too heavy, if the caravan is well loaded. Remember to load your caravan correctly, insuring that the noseweight of the caravan is sufficient and the weight is distributed properly!
Flat roads
Towing Performance
292
367
Mountains
Risk of snaking
348
150
Weight ratio: 75% (83% of kerbweight)
1774 kg
2375 kg
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BMW X5 30d Swift Challenger 620
Actual Weights
Swift Challenger 620: 1774 kg.
BMW X5 30d: 2375 kg.
Noseweight: 95 kg.
Actual weight ratio: 75%.
Performance
The engine's performance is generally very good on flat roads (performance score to compare 292 points).
Speeds of 87 mph (140 km/h) to 91 mph (147 km/h) are often quite possible.
There is a lot of power at low engine speeds (score to compare 367 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 13.4 sec.
In the mountains the performance is generally very good (score to compare 348 points).
No problems are to be expected on steep mountain roads (up to 25%). Not even on Hill starts.
On motorway inclines hardly any higher revs are needed.
A speed of 77 mph (124 km/h) is usually possible on most motorway inclines.
Weight
The towing limit of the BMW is more than sufficient (check this in your vehicle documents).
If you passed your driving test after 1 January 1997, you will need a B+E driving license.
Weight ratio between the laden caravan and the loaded car is 75%. Common in the UK: the weight ratio between the laden caravan and the kerbweight of the car is 83%.
The risk of snaking at higher speeds, strong side winds and thoughtless driving exist. 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 knowledge of and experience in driving a caravan it should be safe to drive. Proper and careful loading is essential! An electronic stability system in the car and / or on the caravan is recommended.
Recommended noseweight is 95 kg.
Safe speed up to 56 mph (90 km/h).
Stability and safety score to compare is 150 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 very good.
Proper and careful loading is still important!
It's a perfect match!
Influence of User Payload on stability
Weight distribution and noseweight are vital in obtaining a stable caravan.