Been after a bike rack for the van, didn't want the hassle of fitting a tow bar and electrics but have barn doors with a spoiler! I came across this on Facebook last week Duo by Mountain Eco and they assured me it would work so I took a punt. It's really well made and with all 6 suction cups fully attached it's capable of 600kgs of force though they rate it at 40kg for 2 bikes. On their website it shows a bike stuck to the ceiling and one of their staff members hanging off the bike! Time will tell I suppose, will I end up with a few grands worth of bike on the road? With the bike attached I have given it a real good shaking and it doesn't budge but I suppose it's only as good as the window bond?? I still have my old barn doors here without windows so might go back to these