With his long experience of working in tech-related posts in the automotive sector, Franck Cazenave is an expert on Big Data and cars. His book Stop Google, published (in French only) by Pearson in 2014, takes issue with the imminent hegemony of Google in the automobile industry and points out in a salutary manner that nothing that is provided ‘free’ on the Internet actually comes without a price. We interviewed him on the sidelines of a L’Atelier numérique (L’Atelier Digital) podcast on the BFM Business channel and asked him to shed some light on the issue of free data and its future use in the automobile context.