Always keep in mind that the manufacturer or whoever is offering the extended warranty is not offering it to lose money. They are taking a calculated risk, and you can bet that they price them VERY carefully based on a number of factors and a lot of data which you don't have access to. It's basically a crap shoot. You might have problems and the extended warranty will have paid for itself. Or you may not have any problems, and the extended warranty will have been money flushed down the toilet. Just realize that the odds will favor the latter.
Yes, the Q50 is a new model in its first year, and therefore more likely to have problems. But it's not an entirely new model. The engine, drivetrain, and most mechanicals are carryover from the G37. Even the Hybrid powertrain has been in use in the M35h for a few years. The only things that are truly new are all the electronics. We all know the software has issues, but what is likely to fail over time? Sensors should not be that expensive to replace. Maybe if the whole InTouch computer craps out and needs to be replaced, that would be pricey.
That's just my opinion. I'm leasing, so I don't really have to make this decision.
