Chris Dyer, a well-known former engineer for Michael Schumacher and Kimi Raikkonen, is returning to F1 after a five year hiatus. The Australian lost his job as chief track engineer at Ferrari after a bungled race strategy cost Fernando Alonso the drivers’ title at the 2010 season finale. More recently, he has been chief engineer for BMW’s DTM programme. But Italian media reports including La Gazzetta dello Sport now confirm that Dyer, 48, is returning to F1 this year with Renault, to be ‘head of vehicle performance’. Autosprint also reports that Romain Grosjean’s engineer at Lotus (now Renault), Ayao Komatsu, has followed the Frenchman to Haas.