Swap UK RHD for Spanish LHD

We are returning to the CDS in a couple of weeks and will be driving down in our UK RHD car - we would like to swap it in Spain if possible for a Spanish LHD car (I don't fancy driving a RHD to work every day) - we have tried all the car garages along the coast (English and Spanish) but have had no joy - does anyone know anybody returning to the UK and wanting a RHD to go back with? Its a renault megane coupe, limited edition, yr 2000, 12 months MOT, taxed until June 2010, really good condition, dark red, full leather interior, electric mirrors, air con, 5 CD changer etc - would consider anything similar.

 Have you tried ?

http://www.londonlhdcentre.com/

http://www.lhdplace.co.uk/

Left hand drive car i london is one of the best LHD car dealer i sold my car few years ago to them they are very honest and relaible people.