Greek roads are not like most North European roads - look out for pot-holes, hairpin bends at every 50 meters, laden donkeys and in August 'the Italians!' The overriding problem though is 'olives'. Yes most of the roads are olive tree lined - the olives fall onto the road to be squashed by your rental Suzuki Jeep's tires, ensuring that only the finest quality cold-pressed extra virgin olive oil is drizzled onto the tarmac! Watch out, this combination is more slippery than black-ice. Not surprisingly, seatbelts are recommended. Laws governing drink-driving, are similar to those in the UK, - the deep ravines by the roadsides seem to take care of any offenders! This said, if you are careful,  driving in Corfu is a stunning experience, with breathtaking views around every corner.
 

When driving your rental car, it is necessary to carry your driving license at all times. If you do not have a new 'photo' version, then I would also recommend carrying your passport.