The Williams team is working with the fire services and the police to determine the root cause of the fire that broke out after the Spanish Grand Prix.

Williams said the fire, which erupted some 90 minutes after the team had won its first race since 2004, had originated from the fuel area.

Michael Schumacher will start next Sunday's Monaco grand prix five places lower than he qualifies.

Despite the furious seven time world champion moaning "idiot" on the radio after the incident, stewards found him guilty of causing the rear-end crash with Williams' Bruno Senna.

"It was clearly Michael's fault," triple world champion Niki Lauda told Bild newspaper, whose headline slammed 'Rambo Schumi'.

Sir Frank Williams admitted that he was "astonished" by Pastor Maldonado's performance during the Spanish Grand Prix.

Maldonado gave Williams its first victory in eight years in Barcelona, converting pole position in to a win despite losing out to Fernando Alonso off the line. It was a hugely impressive display of talent from Maldonado - who had previously been labelled a pay-driver - and although Williams admitted money had got him the seat in the first place he said that he never doubted his racing credentials.

The rumour mill around Felipe Massa's future with Ferrari has reached a high this weekend in the Spanish paddock. After yet another bad result (15th place while team mate Alonso finished 2nd), there are quite some rumours that the Brazilian will be replaced soon.

Whenever there's a rumour of a driver being forced to leave a team, of course, another rumour about who will replace him starts. The paddock was buzzing with possible replacements for Massa: Sergio Pèrez, Paul di Resta, Jérôme d'Ambrosio and even the retired Rubens Barrichello were named.

If any of the rumours are true, we'll see in the following weeks.

Expect a formal announcement early Wednesday about American race car driver Conor Daly's motorsports future. Sources in Indiana, where Daly is from, confirmed that the announcement will regard a deal that Daly, 20, has signed with a well-regarded Formula One team.

This puts two American drivers on the fast track to a Formula One career, including Daly, son of former Formula One driver Derek Daly, and Alexander Rossi, the 20-year-old, California-born open wheel driver who is signed as a test driver for the Caterham F1 team, and who has been competing in the Formula Renault series.

Nick Fry, Chief Executive Officer of Mercedes, has admitted that current Force India driver Paul di Resta is on the team's list as a replacement for Michael Schumacher.

The 26-year-old Scot, who rose to Formula 1 after his DTM title success of 2010, has long been linked with the Mercedes brand, while the aforementioned Schumacher has struggled to make an impact since his return to the sport in the same year.

"Of course Paul's on our radar," Fry told Sky Sports News. "He's done a fantastic job, he's a nice guy, he's great team player and he would be one of the drivers undoubtedly that, if Michael were to decide he didn't want to continue, we would look at.

Mercedes and Renault have warned against delaying the introduction of Formula One's new engine regulations beyond 2014, amid suggestions that the extra expense could stretch the budgets of smaller teams too far.

Formula One is set to switch from the current 2.4-litre naturally aspirated V8s to 1.6-litre turbo charged V6s in two years' time. The original plan was to introduce four cylinder turbo engines in 2013, but it was altered and postponed a year following concerns about the sound and image of the sport.