How's this for an almighty German performance saloon group test? Mat's here to compare the Mercedes-AMG E63 S and the BMW M5 Competition to find out which is the must-have German performance saloon of 2021! From comparing their price and design through to their 0-60mph & brakes, this is the must-see group test for these two cars! But how do they compare on paper? Well starting with the AMG E63, it's powered by a 4-litre twin-turbo V8, which has the ability to put down 612hp & 850Nm of torque. It