Just purchased my first BMW, 2012 238i: There is a slight rattle that can be heard when at rest - is this natural with 4cylinder turbos? I'm used to driving 6 cylinder and eights that have a more natural hum. I sent it to manufacturer, also so that I can get BMW to look at it for the first...

I just purchased a 2011 328i convertible with 40,000 miles from Car Max. We opted for a 100,000 additional warranty 6 year warranty for $2,600. We have 60 days to decide whether or not we want to keep it. Any thoughts on whether or not the 328i convertible needs the warranty? Does anyone here...

Pretty sure I got a hell of a deal yesterday: bought through Carmax in Burbank, CA. I'd looked at a 2007 with no options and 10k miles there, then noticed on their website another 2007 that mentioned sport and premium in their kinda generic features list with 7k miles at *the same price*. Had...