US investigates Tesla’s ‘Mad Max’ high-speed driver assistance mode

<p>Some drivers say vehicles using new version of full self-driving system can travel above speed limits</p><p>The US main transportation safety regulator said on Friday it is seeking information from <a href="https://www.theguardian.com/technology/tesla">Tesla</a> about a new driver assistance mode dubbed “Mad Max” that operates at higher speeds than other versions.</p><p>Some drivers on social media report that Tesla vehicles using the more aggressive version of its full <a href="https://www.theguardian.com/technology/2025/jun/29/elon-musk-tesla-robotaxi">self-driving (FSD) system</a> could operate above posted speed limits.</p> <a href="https://www.theguardian.com/technology/2025/oct/24/tesla-mad-max-driver-assistance-investigation">Continue reading...</a>