Which one would you rather have? Well, as part of Performance Shootout 2018, we decided to take a closer look at the muscle car rivalry between the Mercedes-AMG E63 S and the RTR Mustang Savage 660. Deputy editor Terence Steenkamp is keen on the big German while journalist Nikesh Kooverjee can’t get enough of the tough-to-tame tuned ‘Stang. Let the arguments begin…