Horsey, you made the right decision.
I test drove the X3 after my second test drive in the RR Evoque and that test drive sealed the deal. (OK I haven't put my money down yet but my decision to buy the X3 over the RR was made).
I think the RR is a nicer looking car but as you pointed out the RR interior is claustrophobic.
Like your Wife and Mother my Wife wants a White X3 since it will be her car four years from now. I think I'd prefer the carbon black.
p.s. I'd be glad to wait 10wks for a 35d... can't get 'em were I live.