I'm considering fitting an e46 arm rest in my Z3, we had a car in for M.O.T. on Saturday and I took the liberty of taking measurements and a few photo's too. The only problem that I can see is that the switch for my power roof is mounted at the rear end of my original console but the ashtray attached to the e46 armrest/console would it appears cover the switch meaning I need to move it forwards somewhere. Has anyone done this before and could someone advise me before I buy a used armrest please? Thanks for any info, Tony.