Hi there, are you still looking? I (sadly) changed thew Z4 for a Merc a few years ago but still have a 3 piece set of these safely stowed away. Bought from Koffer24.de in 2013, used a handful of times. Mine are grey and black. Pretty much as new I'd say. They do fit in brilliantly for when you are on a little trip.
https://www.koffer24.com/en/rc--carluggage-set-bmw-z4-e89--RC0030_rc00.html
They will be a bit of a bugger to post is the only thing. I live in London E7 and work in London EC3. Happy to email pics if interested. Cheers, Sean
