A few weeks ago I noticed a couple of cracks in one of my OEM Goodyear Assurance Fuel Max tires on my 2012 Volt. Probably caused by my wife's poor parallel parking skills and the tire having met with a curb.
Haven't really liked the Goodyears (noisy). Rather than buying a new Goodyear to replace the damaged tire, decided to swap out all four with new Continental Pure Contact Eco Plus tires.
I've been driving around on the Contis for a few days and my takeaway is that the Contis are noticeably quieter and ride more plush than the Goodyears. Steering feel is not as good as the Goodyears but overall, pretty happy with the switch. If anyone is interested, got a great deal on Tirebuyer.com (included free shipping).
Haven't seen any drop in range or MPG yet and based on Tirerack's comparison test, should be better than the Goodyears.