F1 faces another major row as it is revealed that Mercedes and Pirelli undertook a 'secret' three-day test at the Barcelona circuit following the Spanish Grand Prix. read more »

Red Bull has demanded clarification from the FIA over why Mercedes' secret tyre test with Pirelli is not a breach of Formula 1's regulations read more »

Whether or not the drivers opt for one or two stops will depend on the speed of their cars and the track position they can maintain; we're not expecting wear or... read more »

Monaco GP: Pirelli qualifying quotes read more »

Toro Rosso team boss Franz Tost says the field should be using the opening practice session of Grand Prix weekends to test new tyres, with chiefs still debating the way in... read more »

As teams continue to argue about whether or not Pirelli should change its current series of F1 slick tyres, Pirelli itself is getting tired of the lack of contract for next... read more »

Alain Prost won't criticise this year's Pirelli tyres, adamant they are playing a role in spicing up the show... read more »

Force India believes Pirelli should hold fire on making a final decision over changes to its Formula 1 tyres until after teams have tested the revised rubber at the Canadian... read more »

Pirelli has threatened to quit as Formula 1's tyre supplier if a new contract for the 2014 season is not promptly agreed, with teams yet to unanimously agree on full... read more »

Pirelli could withdrew from F1 at the end of this season if a new contract for 2014 in not agreed soon... read more »

Christian Horner has issued a feisty counter-punch, after Fernando Alonso suggested Red Bull were bad losers. Ferrari’s Alonso had been asked in Monaco about Red... read more »

Pirelli Motorsport boss, Paul Hembery, has warned that his company could walk away from F1 if a new contract is not agreed soon. read more »

Pirelli has suggested that it could pull out of F1 if a new contract cannot be quicky agreed with the teams.     read more »

TEAM REPRESENTATIVES - Christian HORNER (Red Bull Racing), Paul HEMBERY (Pirelli), Gerard LOPEZ (Lotus), Robert FEARNLEY (Force India), Franz TOST (Toro Rosso), Alain PROST... read more »

The official tyre supplier to Formula 1, Pirelli, has slammed the sport for failing to agree a new contract beyond 2013. Pirelli had hoped to have a new contract in place by... read more »

So far we're seeing a difference of up to a second per lap between the two compounds, which is in line with our expectations at this point, but we would expect that gap to... read more »

Pirelli says it is close to agreeing on changes to the tyres for the Canadian Grand Prix after facing opposition from some teams over its original proposal read more »

Pirelli has said it is running out of time to receive confirmation that it will continue as Formula One's tyre supplier and there will come a point where it will have to... read more »

Pirelli say they are "close" to striking an agreement with all 11 teams about the tweaks they will make to their rear tyres from the Canadian GP - but have admitted... read more »

Monaco GP: Pirelli practice quotes read more »

Force India have reportedly said no to any changes Pirelli want to make to their tyres, fearing they could hurt their chances... read more »

Pirelli is facing resistance from Force India as it tries to get unanimous approval from Formula 1 teams for its tyre modifications read more »

Sebastian Vettel believes the impending tweaks to Formula 1's tyres to stop the recent spate of delaminations are urgently needed, even if Pirelli has ultimately rowed... read more »

Sebastian Vettel reckons Red Bull have come in for some unfair stick in the Pirelli tyre debate as they aren't the only ones complaining... read more »

The ‘T-word’ was still the big topic of conversation as the F1 world congregated in Monaco on Wednesday. But the big paddock whisper is that changes to... read more »