Mercedes technical director James Allison has been surprised by the reliability of the new regulation cars at the private testing in Barcelona.<br>The 2026 Formula 1 season marks the start of a new regulation era in the championship. Included in the major regulations overhaul are a power unit with a 50:50 split between internal combustion and electric power, smaller and lighter cars, and active ...<a class='more' href='https://www.motorsport.com/f1/news/mercedes-technical-director-reveals-biggest-barcelona-shakedown-surprise/10794690/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-F1&utm_term=News&utm_content=www'>Keep reading</a>