370z engine/ auto trans power capabilities

[zinsavage123]

Hello guys, new to the forum, did some digging, but can't seem to find solid answers from the pros.

I am looking at getting a 370z auto, is there a certain year to stay away from? I hear if going auto, only get the sport model, unsure of reasons why, 7 speed/paddle shifter?

My main concern is, I like to go fast, seen these cars go 12's with bolt ons, but curious as to what these cars and their autos can generally handle whp/trq wise before a unsafe level? Are these engines/auto trans solid for the most part? I would definitely be turboing in the future if so once I find a good deal on one.'