Highlights in this issue include a conversation with Luca Marmorini, the designer responsible for drawing up most of the latest Formula One engine regulations. A Dossier on AUDI R18 4.0 Litre V6 TDI, the challenges of Super GT500, a report on PRI 2016, a insight into Cosworth’s half-century of top-level motorsport power plants, focuses on fuel pumps and the advent of fuel flow regulations, and an insight into 100 issues of RET: the past, present and future of Race Engine Technology.