To keep the 5.0 or trade for a 370Z that is the question...

[Antigini]

I'm a Mustang owner(2007 GT/CS) so i'm biased...but keep the Mustang. Just get some good brakes(unless you have Brembos, didn't notice in the pic) and throw some adjustable suspension with lowering springs and camber plates(the oem don't like to be lowered) with some negative camber for contact patch and you'll be good to go! Just adding brakes to mine I was able to shave a couple seconds from my lap times because I can brake deeper and harder without worrying about fade.