Just found a crack on the inside rear driver side rim. Car has just passed 50,000km, and I'm the second owner, so no warranty of course. But the mech at the stealership did give me a tidbit of info, that these alum stock rims only have a estimated life span of 4yrs, something to do with weather change on the materials, but without the extended warranty specific for the tire & rims we're up a creek.

In Canada the replacement rim is just shy of $1000 tax in... for one.

He recommended trying to find an aluminum welder to fix the crack if the rubber is still good.

I ended up going for a new set of aftermarkets (all 4 for $1000 tax in.. go figure)