F1's title battle spilled off the track and into the news conference room at the Qatar GP as Mercedes' Toto Wolff and Red Bull's Christian Horner were pitched against each other in a war of words. Here are the best bits of their 30-minute exchange.

Wolff, Horner square off over Brazil, rear wings and F1 protests

F1's title battle spilled off the track and into the news conference room at the Qatar GP as Mercedes' Toto Wolff and Red Bull's Christian Horner were pitched against each other in a war of words. Here are the best bits of their 30-minute exchange.