There r 4 power sources in it ( out side hookup ,UPS,Standby battery, Generator)
It does not vibrate on higher speeds I put leaf spring on each axle .
By the way it is prohibited to sit in the caravan while on the go (that law is all around the globe ) I all so recommend the same bro !
If u come to Lahore u r welcome to visit me I shell show u around !!! 
[QUOTE=Wayn;3831716]1.What powers all the appliances presebt inside?i wonder
2.does it vibrate alot at 40kph+ speeds? Since no shock absorbers are present?i bet it will be too noisy and shaky(not a pesiment,i love LOVE it,but jusy saying)
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