Mercedes chief Toto Wolff believes his former star driver Lewis Hamilton will be back to his best despite a difficult start to life with Ferrari.Wolff said it was not a shock that Hamilton would need time to adjust to a new car and new team after so long at Mercedes.

The Mercedes chief says there are no questions over Lewis Hamilton’s ability, and said he will be "stellar" for Ferrari's Formula 1 team

Formula One revs up in Miami and a new book takes a look at the growing interest in the sport and the impact of one of its most prolific drivers, Lewis Hamilton. Author Michael E. Sawyer talks about "Sir Lewis".