I have a 2011 Regal CXL that I bought used last August 2013. It was certified, thankfully. It had 41000 miles when I bought it, now it has 57,000. Ever since I got the car occasionally it would squeal on startup, like the belt was slipping. I took it to the dealer a couple times, and it would never squeal for them. Also on a couple occasions over the last year it would suddenly kill at idle, usually would start back up again. Took it in for that, they said they cleaned the throttle body and advised me not to use cheap gas. Lately it has been squealing more often, and also string making a grinding noise on startup. I called them again, it was due for an oil change and asked them to check it again. Last week I was driving at low speed and the grinding didn't stop. I coasted to a stop light and the car died. Threw it into park and tried to start it again, I could hear the starter motor but it wasn't cranking the engine. A friendly police officer helped me push it out of traffic and the dealer towed it out there. Apparently the timing chain broke and bent up all the valves. They have pulled the head and had it sent to repair. I am very leary of the car now and not sure I will keep it. Will definitely take a bath on a trade I am sure. Dealer says it should be 'better than new' when it is done, but I am doubtful. A shame too, as I really liked the car as was planning on keeping it for some years, after sticking $2,000 into window tint, tires, Weather Tech mats, etc. The warranty will only extend another 15,000 miles, they won't extend it. Anyone else had this happen?