I am not quite sure how helpful I can be re prices John but we have just bought a holiday home just outside Vilafranca del Penedes. I have noticed the new rail line although I haven’t actually used it yet. Vilafranca is at the side of the A7 so is convenient for the motorway it usually takes us about 1 hour to get to the centre of Barcelona. It is about half an hour from the coast. There is alot of new building going on here and I can tell you not many Brits buy here so it is mainly for Spanish purchasers. However again it is not what I would call cheap!!!
Hope that is a little helpful