Chris Harris together with his cameraman and editor, Neil Carey, bring us a comprehensive opinion on two flagship Germans; the Mercedes-Benz SL63 AMG and BMW M6 Coupé. Will the sharper and pointier looking M6 run rings around the traditionally ‘soft’ SL? The M6 has a carbon fibre roof, the SL, an all aluminium body. A 4.4-litre twin-turbocharged V8 goes up against a larger, boosted and hand-built 5.5-litre. Is it all about the power, the handling and the styling, making this anything but an easy call.