There are 13 drivers who know they have to do everything they can over the next 21 races to earn another Formula 1 contract. Their performances in every practice session, qualifying and race will be carefully analysed by their own team and others on the grid and that won’t change in Japan this weekend. Speaking on The Race Podcast, journalist Edd Straw believes that after just three Grand Prix, one driver was already impressed with their displays. For the quickest five teams, regularly scoring points while challenging for podiums has to be the aim. Much of that will depend on how Red Bull fare…