I'm a brit living in Switzerland. A beautiful country but watch out if you drive here! Here's a few quirks that caught me out when I first came and which seem very illogical to most brits.
1) If a junction has no markings (mainly in towns) then traffic from the RIGHT has priority, EVEN if your road ahead appears straight. I know someone, who had a crash because he didn't know this.
2) Traffic lights with a green arrow to turn right. Watch out! You may be expected to give pedestrians priority and they may have a green man lit. Often there is a flashing yellow light to remind you.
3) When leaving a roundabout, signal your intention. The police sometimes wait on exits and hand out fines. Ouch! That's how I learnt this one for the first time.
Hope that's of use to anyone considering a visit. Oh, you'll need a 'Vignette' for the motorways, which is a kind of tax disc. You can buy them at most border posts or petrol stations. Look out for speed cameras too. They are everywhere.