In the black corner is the alarmingly threatening and recently revised Mercedes-AMG C63 S Coupe ... equally black corner is the BMW M4 with its Competition Package, which while trading a fair ...

and the C63’s best is 1:25.6. To its credit, the car’s optional hybrid carbon front/cast-iron rear brake setup lasts very well and the tyres look evenly scrubbed across the tread. The BMW M4 ...