US chipmaker Nvidia\u2019s move to buy Arm, a UK chip designer, for $40 billion is facing regulatory headwinds, with UK competition authority knocking back Nvidia\u2019s proposed legal undertakings. Now, the deal is being considered by the EU\u2019s competition regulator \u2014 something that may highlight the fissures between the approach of the EU and UK to managing complex, vertical acquisitions in the tech industry. Also on the podcast: China gears up for the regulation of connected cars \u2014 and there\u2019s more to it than just privacy.