I fully realize a home on HK island with a two car garage is astronomical. I was just joking around with you
I do think that if you did your homework you could find someone to rent you garage space for the boxster and pick up a more comfortable DD... of course, all this has to do with your income level. This in and of itself would be a very expensive option, and one I would never be able to afford personally.
BTW, I run 29 all the way around because of my coilover setup and I've seen no unusual wear problems.