FULL TRANSCRIPT: Read every word from F1 engine guru Mario Illien's Beyond The Grid interview

Newer Formula 1 fans might not have heard the name 'Mario Illien' – but the Swiss engineer has had a huge impact on Grand Prix racing, as well as other series like IndyCar, having been the design genius behind some of motor racing's most successful power units.

Mario is this week's guest on our Beyond The Grid podcast, and you can read every word from his interview with pod host Tom Clarkson in the transcript below, listen to the episode in the audio player, or head here to catch it on your preferred platform.