I have just part exchanged my C180 02 for a C180K facelift 04 avantgarde auto estate and I really like the new(er) car. A few questions if I may ? It has a leather interior but no heated front seats ? No spare tyre, what size dimensions should it be ? bearing in mind the rear tyres are wider than the front ones. The automatic wipers don't work like the older car ! It has an aux connection with a IPOD connector to the audio 20. Can I change this to a usb connection to be able to play from USB and should the ipod connector charge an Ipod when plugged in ? Anything I should watch out for or known problems with the C180K ?