Listen to this article The Brackley-based team’s focus has been on chasing answers to its porpoising problems, but is also aware that its chances this year have not been helped by a lack of straightline speed. While engine performance has played a part in that, the team is also aware that the high downforce specification wing package it elected to have at the start of the campaign has a high drag consequence. For this weekend’s race at Miami, which features long straights, the W13 is being fitted with a new smaller rear wing mainplane and a new smaller chord beam wing flag. In explaining the changes, the team has said: “This rear wing configuration provides reduced downforce and reduced drag based on circuit simulations, this is likely to be preferred over our higher downforce option which has been used a …