You live and you die with the stock side mirrors on the 370z. I mean the visibility is just horrible as is already. I dont understand how obtaining smaller diameter mirrors would aid you? Also, when on a date, make sure you remember to "manually" adjust your mirrors PRIOR to have your chick in the car. The most embarrasing thing would be to ask your chick: "hey babe, can you lower the window and turn the mirror a little to the left?"