Might be getting a Fabia, poss estate (see threads passim).

Quick question, do the roof rails fitted to the estate with Elegance trim compromise the aerodynamics and hence performance economy?

(Obviously they would when being used, question is whether they do when not being used.)

Ta

The longitudinal rails running front to back won't cause too much of a problem - in terms of economy or excessive noise - they are common on lots of estate cars.

Its the cross bars that will make a difference - and these should be realtively easy to add/remove - just put them on when you actually need them