The BMW X1 sDrive20i with a Swift Challenger 580 with an actual weight of 1554 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 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 heavy. Try to move luggage from the caravan to the car and drive not too fast. 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
252
191
Mountains
Risk of snaking
292
109
Weight ratio: 85% (96% of kerbweight)
1554 kg
1825 kg
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BMW X1 sDrive20i Swift Challenger 580
Actual Weights
Swift Challenger 580: 1554 kg.
BMW X1 sDrive20i: 1825 kg.
Noseweight: 85 kg.
Actual weight ratio: 85%.
Performance
The engine's performance is generally very good on flat roads (performance score to compare 252 points).
Speeds of 79 mph (127 km/h) to 84 mph (135 km/h) are often quite possible.
There is sufficient power at low engine speeds (score to compare 191 points).
Slightly higher revs (2000 rpm) may be necessary under normal conditions on flat roads.
Acceleration from 0-62 mph (0-100 km/h) is theoretically possible in 16.4 sec.
In the mountains the performance is generally very good (score to compare 292 points).
No problems are to be expected on steep mountain roads. Hill starts are possible on steep slopes up to 17%.
On motorway inclines higher revs (3700 rpm) are needed.
A speed of 69 mph (112 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 (or B96) driving license.
The caravan is too heavily loaded.
Weight ratio between the laden caravan and the loaded car is 85%. Common in the UK: the weight ratio between the laden caravan and the kerbweight of the car is 96%.
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 85 kg.
Safe speed up to 50 mph (80 km/h).
Stability and safety score to compare is 109 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 perfect match!
Influence of User Payload on stability
Weight distribution and noseweight are vital in obtaining a stable caravan.