"I think we were able to improve the car throughout today," says Vettel, "but we definitely need to make another step." read more »

There is still a lot of work to do, because neither driver is yet happy with the handling of his car. read more »

"Jenson wasn't quite able to extract the full potential from the option tyre," admits Martin Whitmarsh. "But we're confident that we can make the... read more »

Sebastian Vettel is sure that rain will affect at least part of the Brazilian Grand Prix weekend, with Lewis Hamilton having topped the timesheets on a dry Friday. Rain is... read more »

"As with most other runners we seem to be experiencing instability at the rear and both cars need to dial in the balance overnight," admits John Booth. read more »

"Set-up is going to be especially important given the potential changeable weather conditions throughout the weekend," says Mark Gillan. read more »

"Our new rear wing which maximises the effect of DRS worked exactly as we had predicted," says Mike Gascoyne. "I think we can look forward to a good final... read more »

Brazilian Grand Prix Friday quotes: Lotus read more »

Brazilian Grand Prix practice pacesetter Lewis Hamilton was delighted with his McLaren on Friday at Interlagos but still suspects Red Bull will prove slightly quicker over the... read more »

Brazilian Grand Prix Friday quotes: Williams read more »

Team Lotus has pinned its hopes on a new rear wing tested during Friday practice for the Brazilian Grand Prix as it seeks to end its season on a high and secure its coveted... read more »

Fernando Alonso is hoping for rain in Sunday's Brazilian GP, admitting it would boost his chances of fighting for the race victory... read more »

"Our direct rivals remain within reach," says Colin Kolles, "and I am confident that we can cut down the differences tomorrow." read more »

Lewis Hamilton is confident McLaren has the pace to challenge Red Bull at this weekend's Brazilian Grand Prix after topping the Friday practice times read more »

Sauber had a busy first day ahead of the Brazilian Grand Prix, with Sergio Perez having to stop early due to a gearbox problem. read more »

Jenson Button said that he has yet to find a balance in his car but is confident he has the solutions to resolve any issues ahead of qualifying for the Brazilian Grand Prix read more »

Jenson Button admitted he struggled to get any speed out of the softer Pirelli tyre in Brazilian Grand Prix practice - but is generally confident in his McLaren's pace... read more »

"Both sessions ran well and we achieved the work that we had planned," says Ross Brawn. "As always, there is still progress to be made." read more »

Brazilian Grand Prix Friday quotes: Sauber read more »

Toro Rosso believes it has scanned enough elements today to have a good idea what to do whatever the conditions this weekend. read more »

Timo Glock was left to rue consistent tyre issues throughout practice for this weekend’s Brazilian Grand Prix, describing the behaviour of the Pirelli rubber on offer... read more »

Fernando Alonso says that it is too early to say how competitive Ferrari will be in this weekend's Brazilian Grand Prix at Interlagos despite lapping just two tenths... read more »

Vitantonio Liuzzi was pleased to have made up time on Friday, having missed the first Brazilian practice session as HRT ran Czech driver Jan Charouz. The Italian’s... read more »

Read what the drivers had to say after Friday practice for the Brazilian Grand Prix read more »

Sebastian Vettel is confident the setup of his Red Bull is going in the right direction after the first day of practice at the Brazilian Grand Prix, but is aware it could all... read more »