All carmakers are looking to address the changes in the way people want to own and drive cars. But BMW's idea to ask its customers to pay £15 a month for a heated seat subscription seems a bit cheeky and, perhaps, misses the point. And former Volkswagen CEO, Herbert Diess' recent and sudden departure from the carmaker, has been linked to poor software development. According to a report in the Financial Times, Daniela Carvallo, VW's work council leader, last year criticised Diess for problems in the company's software development programme.