#3 Is Vettel unhappy at Ferrari?
Sebastian Vettel is just days away from missing out on another drivers' championship.
It will be the second season in a row that the German will finish second to Lewis Hamilton and it will soon be five years since his last world championship success.
Vettel joined Scuderia Ferrari in 2015 in a bid to win another world championship but at a different team.
But four seasons down the line and Vettel's dream to succeed at the Italian giants look very slim.
Is the four-time champion unhappy at Ferrari?
Former Red Bull driver and F1 pundit, David Coulthard, mentioned on Channel 4 last weekend that he has seen Vettel spend a lot of time hanging about in the Red Bull garage.
Not just at the US Grand Prix but in previous races as well.
Could Vettel be looking for a ticket back to Red Bull where all his success happened?