I own a 2009 IS350 and have enjoyed the car over about 40k miles. Like the BMW, it does go through OEM tires, but otherwise has been trouble free. I prefer the styling of the older IS to the BMW. Not a fan of the new style. Cabin is small so it's tight for me (6ft 3) and back seat room is tight. I think this is typical for this class car. handling and power are great. MPG is 24 overall, 30 on highway at 75 mph. If you are shopping used, I would suspect you are more likely to find a gently used Lexus than a BMW. IMHO Lexus dealers are nicer.