Mercedes remains on the maximum score of four wins after four Formula 1 grands prix, although the competition was significantly closer in Miami than during the three race weekends prior to the April break.<br>McLaren, Ferrari and Red Bull all travelled to Florida with significant upgrades, while Mercedes has its first major package of the year planned for the Canadian Grand Prix in ...<a class='more' href='https://www.motorsport.com/f1/news/toto-wolff-mercedes-poor-starts-not-acceptable-if-we-want-to-win-f1-world-titles/10818312/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-F1&utm_term=News&utm_content=www'>Keep reading</a>