Hey guys I just bought an 05 g35 sedan an it was running good at the dealership it seemed, as I went to drive it home 5 minutes onto the highway the rpms started going all over the place so I pulled over and it stalled out and won't turn back over, at all! Battery and everything is cranking but it's just not starting

Demand the dealership tow it back and refund your money.

The issue could be caused by a number of things, and its best that you have it towed to a shop to get it looked at. Sorry to hear and good luck to you.

Sorry to hear that. I would definitely call the dealership and demand it towed back to them.
Did it come with any type of warranty? Either way, call them immediately to discuss.

It could be something simple. If they won't honor anything, you may need to tow it to a reputable mechanic and have them repair. But from your description, it could be a number of things.

Good luck and report back when you have more information.

MAF sensor maybe?

take it back

It turned out to be the fuel sender unit , my gage was reading a half tank of fuel but had none.... The dealer wouldn't refund the car or anything, j had to pay a tow 600 dollers for a 100km tow but ended up getting the dealer to pay for the tow, all seems well now except im having some issues with the shift lock, it gets stuck in park sometimes and sometimes won't go back into park. Any info?

I smell a lawsuit in the future