I've never needed to do this before but after being told it'd cost £270 to hire 2 car seats in Portugal this summer we've decided to take them with us (and I don't know if I'd trust hired seats anyway).
Luckily we're flying BA so we can take them without them counting as part of our luggage.
BUT I'm a bit worried about how the baggage handlers might handle them. I've seen the way cases get chucked about and even sometimes just coming onto the baggage carousal they drop down with quite a thud (the one at Heathrow terminal 1 does anyway)
Does anyone know if they get treated differently to normal cases? Anyone had issues with damaged seats before? Is it still better to take them and take that risk than hire them and take a risk there about what their history is?