As per "The Long Way Down" you're going to need a "fixer".
I'll do it

I'll use my bike, you pay for the petrol and my hotels, food, concubines, etc, etc.
Oh and my fee of course - £5,000
On a more serious note - I'm very jealous and I hope you have a good time.
Europe is well geared up for camping as I'm sure you know.
The driving varies from Country to Country and most are very civilised - then there's ITALY ! The driving is absolutely crap, they are nose to tail at high speed with poor skills to boot.
A personal favoutite of mine in Switzerland are:
The roads up to Zermatt, then a cable car up to the top of the mountain to look at the Matterhorn.
The Grand Dixence Dam
http://encarta.msn.com/media_701610671_761571795_-1_1/grand_dixence_dam.html
All the usual Mountain passes
http://en.wikipedia.org/wiki/List_of_mountain_passes_in_Switzerland
I'm off there in June, hopefully.
Good luck with the trip.