The new car I am considering is a Ford B-Max. This is much the same footprint as my current Fiesta, and should still fit inside my garage length and width-wise but is significantly taller. I calculate that the aerial (conventional bee sting) will be about two inches too high and will catch on the underside of the open garage door.

The solution would appear to be to fit one of those small devices you see on the roof of SUVs from Audi, BMW, Range Rover and the like. They look like a small cycling helmet or a cockscomb, and doubtless have a proper name, but presumably house an aerial and signal booster.

Ford do not offer such a fitment, so can you recommend an aerial specialist who could install such a device to a B-Max?