The FIA has confirmed Red Bull and Ferrari have lodged protests against Mercedes' tyre test with Pirelli in Spain earlier this month read more »

Dr Helmut Marko says Mercedes could have gained a one second per lap advantage by testing between the Spanish and Monaco grands prix. A controversy has erupted over... read more »

Red Bull's Mark Webber admitted he was surprised to learn that Mercedes had carried out a secret tyre test with Pirelli after the Spanish Grand Prix read more »

Ross Brawn insists that there was nothing untoward about the three-day tyre test it conducted on behalf of Pirelli after the Spanish Grand... read more »

Red Bull has lodged an official protest against Mercedes' private test with Pirelli, with team principal Christian Horner seeking "clarity" read more »

Red Bull Racing have lodged an official complaint about Mercedes recently spent three days testing with Pirelli... read more »

Pirelli has attempted to play down speculation that it was giving Mercedes a boost - or breaking the F1 rules - by involving it in a tyre test in... read more »

There has been controversy in the Monaco paddock as it was revealed that Mercedes and Pirelli completed 1,000km of private testing last week in Spain. Red Bull team principal... read more »

It has emerged in Monaco that Mercedes took part in a 1000km private test at the request of Pirelli after the Spanish Grand Prix, leading its rivals to argue it has gained an... read more »

Pirelli insists that Mercedes will have gained no advantage from the secret tyre test it conducted after the Spanish Grand Prix read more »

Christian Horner is demanding answers after learning that Pirelli recently conducted a secret three-day test with the help of Mercedes... read more »

It has emerged at Monaco that Pirelli invited Mercedes AMG for a 'secret' 1000km tyre test following the Spanish Grand Prix two weeks ago. Talk is now that... read more »

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 »