Your F1 questions answered - part IV

Red Bull's Sebastian Vettel is closing in on a second world title with the rest of the field fighting over second place in the drivers' standings.

What are the reasons behind Lewis Hamilton's form; why have Ferrari struggled to mount a challenge this season and will we see former champion Kimi Raikkonen back in Formula 1?

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Source: http://www.bbc.co.uk/blogs/murraywalker/2011/10/your_f1_questions_answered_-_p_1.html

Stefan Bellof Paul Belmondo Tom Belso