Rodge

It's designed for a full size 16" wheel. Wider wheels will squeeze in, but raise the carpet slightly, as you say. I've wondered about this. There's a 17 year old unused space saver in the back of my Focus and a 5 year old full size tyre in my Octavia that's done all of 5 miles. So I've got 80 odd quid's of full size rubber ageing away. I'd considered swapping it for one of the used tyres when I buy new, but I want to switch from Energy Savers to CrossClimates. And all 5 of the 5 year old tyres passed the MOT.

That's interesting, and I see that OSRAM do quote all their H7 bulbs at the same number of lumens. It does make you wonder if there's any point in buying the fancy expensive "brighter" bulbs at all. And of course OSRAM's Allseason bulb, for "Better sight under all weather conditions", actually has a yellow filter.

SmartLink doesn't appear in the menu on older units. If SmartLink is shown then that means it is present. When it says "contact a dealer to activate SmartLink", that means a dealer can activate it. Summary: Your dealer is an idiot.

According to OSRAM, the Cool Blue Intense H15 is dimmer than the "Original Line" H15, at 200/1330 lm compared with 260/1350 lm. :-( See https://www.osram.co.uk/ecat/COOL BLUE INTENSE-Halogen headlight lamps-Car lighting-Automotive/gb/en/GPS01_1056960/PP_EUROPE_UK_eCat/ZMP_1191016/ and https://www.osram.co.uk/ecat/ORIGINAL LINE-Halogen headlight lamps-Car lighting-Automotive/gb/en/GPS01_1057023/PP_EUROPE_UK_eCat/ZMP_61174/ I don't see how they can claim "up to 20% brighter" when no member of the Cool Blue Intense product family has a greater luminous flux than Original Line product family, but they do have a significantly reduced lifespan, as listed on the PDF family data sheets. I don't think 30% brighter bulbs are noticeably brighter, but if there was a 30% brighter H15 available I'd buy it.

If only it was that easy to remove.

If it's that easy for the driver to make an error then there's something wrong with the car. If it's possible for other drivers to make a mistake then so can I. It doesn't exactly instil confidence in the car.