Most people ride/drive all the way. That's what this site is all about.
Other than motoring expenses, you need a carnet de passage. That's about it, aside from normal day to day.
Have a good look at the paperwork section of this site; loads of good stuff.
P.S. George I: at last you've bothered to learn English - good for you. Only took you three hundred years.
Around the world 2000-2004, on a 1993 Honda Transalp