Sorry to hear about your accident, glad you're okay though.
My vote would be for another Z, but I can't put my money on a 2013, the body (un)improvements ruined it for me.
As for the mustang, I'd say wait till the 2014's come out to invest in one of those, so sayeth some Mustang owners I know.
BRZ wouldn't be bad, apparently has a much larger aftermarket following than the Z does.
