Needing new front tires for my '14 Spark EV I started looking around on line. Lo and behold Costco still has 185 Bridgestone Ecopias. I have these tires on now and they're OK for me (much better that the Ecopia 110's that came on the car) so I had them order some and went in to have them installed this morning. Good thing I happened to peek at the installation bay after about an hour. They'd mounted the tires on the front wheels and were in the process of moving the rears to the front. I know GM says don't do this and I've read here that they will clip the calipers. After I shouted at the installer, he apologetically said they usually only see staggered tires on BMW's and the like. Once they were done I politely confronted the manager and he mentioned, as an excuse, that only the electrics have staggered tires. BE WARY OF UNINFORMED AMATEURS.