Whatever you do, AVOID SWITZERLAND! Speed limits are ridiculous, you keep having to go into tunnels and there's more speedcameras than cars. You also need this ticket to drive through the damn country, which you'd have to buy at the border I'd imagine, assuming you don't have it.
In short: Switzerland hates cars.
Unless you really really like seeing a lot of mountains and have all the time in the world, go the other way.