No matter how fast and well-rounded a car is, there will always be those who want to make it faster and? uh? rounder. Take the 2016 Mercedes-AMG GT for instance ? by all accounts an outstanding sports car with a powerful and sonorous V-8 under its long hood and spot-on looks. It?s a car just about any of us would love to have in our driveways, and Mercedes-AMG have spent hundreds or millions of dollars and invested countless man hours to make sure that?s the case. So, you sort of have to give the side-eye glance to tuning outfits claiming they can improve upon the product of a multi-billion-dollar multi-national corporation.[...]