I've just been round the Scottish Highlands in my new Renault Megane and rain has been a preoccupation, whilst the rest of Britain has been sunbathing.
It has automatic windscreen wipers, which are 100% effective: They sense heavy and light rain and move faultlessly from adjusting the intermittent wipe speed, right up to fast wipe: How do they sense? What's the technology involved? - I'm fascinated.