Cadillac Formula 1 team principal Graeme Lowdon says the needle between his team and Red Bull partner Ford "adds another layer of interest" to the series.<br>Cadillac is making its long-awaited F1 debut this year as an 11th expansion team, initially joining as a Ferrari customer outfit while working on its in-house power units in the US. Meanwhile, Ford is returning to the series as a power unit ...<a class='more' href='https://www.motorsport.com/f1/news/graeme-lowdon-healthy-rivalry-between-gm-and-ford-good-for-f1-fans/10793438/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-F1&utm_term=News&utm_content=www'>Keep reading</a>