Former Formula 1 driver David Coulthard believes that Mercedes will be concerned by Ferrari's recent gains in the constructors' championship, especially as reliability issues and software quirks continue to plague the Brackley outfit.<br>Coulthard addressed the growing threat from the Maranello squad on the Up To Speed podcast. While Mercedes has undoubtedly delivered a highly competitive package ...<a class='more' href='https://www.motorsport.com/f1/news/mercedes-faces-ferrari-threat-amid-reliability-woes-says-david-coulthard/10841208/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-F1&utm_term=News&utm_content=www'>Keep reading</a>