BAD BUICK I've only had this car for a period of about 6mos. When I first got it, it started racing, the idle was really fast. then about two weeks later the idle slowed way down. Then went almost normal but, while I am driving it will die as when I would approach a stop and take my foot off the excelator or coming up behind a slower car, basically any time I would take my foot off the excelator. But not every single time but multiple times w/i a short distance. I would put it in N and turn the key and it will start right off again, until it happens again. This went on for a period of about 5 mos. I took it to the mechanic, he said that nothing is reading on the diagnostics. So I continue to drive it until three weeks ago when it died and would not start. It died the same as what I described before, except this time it didn't start at all, nothing, would not crank or anything. Left it sit 2 days till I could get someone to tow it, and I got in and it started right away as if nothing was wronge. Drove it for 2days same thing happened again died wouldn't start, sat three days started again, drove one day, shut it off in walmrt parking lot, came back 30mins. later would not do anything. Towed it to the mechanic where it is currently, sometimes it starts sometimes it won't. As of now it won't. Please HELP. This thing is so mystifying.