Sitting in traffic behind a 2018 Mustang GT in Royal Crimson, then finding the same car parked outside a restaurant an hour later, turns into an accidental close look at a refresh most people had only read about. Ford did far more than repaint the GT for 2018: the V8 gained 25 horsepower, the clutch was redesigned, and the analog gauges disappeared entirely. Read on for what actually changed under the new paint.