What do you do when you roll hard? You roll harder. That’s the feeling I got when I came across Mike Mancini’s Mercedes Benz AMG GTs, from Toronto, Canada. A self-confessed lover of all things benz, Mancini owns and operates SMART Automotive, a local shop that pushes out impressive builds including his own C63 507 AMG on AccuAir suspension. Late in 2015,…