Which wheels on a new Boxster?

I am looking at buying the new Porsche Boxster to use for touring in Europe and to some out of the way areas. As there is no spare or space saver, only a can of foam, I am concerned about being stranded somewhere waiting for a new tyre to be sourced from a major town or city. Which of the following combinations are likely to be more easily found?

Front 235/45 R18, back 265/45 R18 - or front 235/40 R19, back 265/40 R19.

Or are they all going to be very difficult!?

Asked on 15 August 2012 by Pavlo

Answered by Honest John
You will get a better ride and are less likely to suffer punctures or wheel damage on the front 235/45 R18 back 265/45 R18.
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