Looking for some info please. I bought a clk350 a year ago from Mercedes dealer in Skipton . (Car is first class) I bought it on an agility 3 year deal.Our circumstances have changed and my mrs wants an m class. Question is - can we exchange vehicles with mercedes ( trade up or down )and re do agility deal can we sell privately and pay finance balance off can we hand vehicle back ? as we have just moved house , agility paperwork is in a box somewhere.I will be contacting mercedes finance tommorow but thought you guys and gals could offer a bit of advice. Thanks in advance.