Mercedes boss Toto Wolff says Formula One risks playing with fire if it does not take Ferrari's threat to quit the sport seriously. read more »

Formula One Management director Ross Brawn believes Silverstone's place on the calendar is not under threat and is optimistic a new deal can be agreed. read more »

Toto Wolff believes the threat from Sergio Marchionne to pull Ferrari from Formula 1 should be taken seriously. read more »

Daniel Ricciardo says Ferrari remain a threat to Red Bull in the hunt to take down Mercedes as defending F1 world champions in 2018. read more »

Max Verstappen says he does not consider McLaren and Renault as major rivals for Red Bull in 2018, amid growing optimism about the pace of his RB14 Formula 1 car read more »

Mercedes techical director James Allison has singled out Red Bull as potentially the biggest threat to Mercedes F1 title hopes in 2018.  read more »

Mercedes technical director James Allison has singled out Red Bull as potentially the champion team's main threat in the 2018 Formula 1 season read more »

FIA president Jean Todt insists he is not concerned by Ferrari's threat to quit Formula 1 over the sport's future direction read more »

FIA president Jean Todt insists he is not worried by Ferrari's threat to quit Formula One. read more »

Mercedes boss Toto Wolff thinks Red Bull will be a major threat for both race wins and the championship as the Silver Arrows prepare for a three-way title fight. read more »

Sergio Perez is wary of Renault and McLaren threat for fourth read more »

Sergio Perez casts concern on Force India being able to keep control of fourth place in the F1 world constructors' championship due to McLaren and Renault. read more »

Bernie Ecclestone has reiterated his warning that Ferrari’s F1 quit threat should be taken seriously.  read more »

Bernie Ecclestone 'fears' Sergio Marchionne could follow through on his threat and take Ferrari out of F1 for breakaway series. read more »

Formula 1 2018 will burst into action this week when winter testing begins on Monday at Barcelona, with the threat to Mercedes' recent domination and... read more »

Mercedes boss Toto Wolff is not taking anything for granted ahead of the new season and named McLaren and Renault among their potential main rivals. read more »

McLaren and Renault will pose a "significant" threat to Force India in the 2018 Formula 1 constructors' battle, according to the team's deputy team... read more »

Formula E boss Alejandro Agag has labelled Ferrari's quit threat as a mere "negotiation tactic" and does not believe any branch of the Fiat company is heading to... read more »

Formula E CEO Alejandro Agag believes Ferrari's latest Formula One quit threat is nothing more than a tactical business ploy. read more »

Williams technical chief Paddy Lowe says the team is wary of the threat McLaren will pose in 2018 after ditching Honda for Renault power in Formula 1 read more »

Sergio Perez believes Force India cannot afford to bring team orders into effect again next season with the threat of a resurgence from both Renault and McLaren. read more »

Sergio Perez says Force India needs to let him and Esteban Ocon race each other again in 2018 given the threat posed by Formula 1 rivals McLaren and Renault read more »

Ferrari has warned F1 to take its quit threat seriously, yet it remains difficult to imagine Sergio Marchionne pulling the Italian team out of the sport. read more »

Ferrari has urged Formula One bosses to take its quit threat seriously or risk "playing with fire". read more »

Ferrari have ratcheted up their threat to quit F1 with Sergio Marchionne saying a post-2020 "divorce" could be followed by the sport's most famous team racing in... read more »