Has anyone else noticed any issues with replacement part availability? My right DRL led's quit working 3 weeks after taking possesion of the car. The dlrship did not have a replacement relay in stock, and could not take one off a loaner/demo etc. Now I'll have to return next week after the part comes in. Hopefully its a isolated issue. I really want to like this car as much as my previous 2011 G37x, but a few things- the DRL failure, the fact my kid's booster seat doesn't fit with the flush back seatbelts (fit fine in the G) and few fit/finish rattles in the headliner have bugged me a little. Hope it all clears up- I love the ride and the technology!