car tuner from Germany, has unveiled the modified version of the BMW M5 known as the N635S 5.8 Hans Nowack Edition to celebrate the end of the naturally aspirated BMW M engines. The modifications on the 5.0-liter V8 engine comprise of a remapped ECU and two bespoke intake air collectors with a higher air volume in order to produce maximum output of 718 hp at 9,000 rpm.