Vettel heads Alonso in practice in Singapore
Red Bull's Sebastian Vettel clocked the quickest lap of Friday practice for the Singapore Grand Prix as crashes interrupted each session at Marina Bay.
The German lapped in one minute 48.650 seconds in the second session to beat Renault's Fernando Alonso by 0.274secs.
Rubens Barrichello topped the first session ahead of his Brawn team-mate and championship leader Jenson Button.
Renault's Romain Grosjean and then Red Bull's Mark Webber crashed out on the dusty, slippery street circuit.
The first session was stopped for 10 minutes half-way through after Grosjean lost control of his Renault and crashed at Turn 17.
The Frenchman's mishap was laden with irony as it was at the same point where former Renault driver Nelson Piquet Jr was ordered to crash last year, the controversial race-fixing incident which saw Renault handed a suspended ban from F1 this week.
We're here to do the best job we can as normal, keep our heads down, and put everything that's happened in the past few weeks behind us
Acting Renault team boss Bob Bell
Webber, who was third fastest in the first session, was running aggressively at the top of the timesheets around the hour mark of the second when he crashed head on into a wall on the pit straight.
That meant that despite finishing sixth under the lights the Australian, who has faded somewhat from the championship battle in recent races, lost running time and only managed 14 laps.
"It was simply driver error," Red Bull team boss Christian Horner told BBC Sport.
Alonso, who won the now-infamous Singapore race in 2008, was fourth fastest in the first session.
BBC SPORT | Motorsport | Formula 1 | Vettel heads Alonso in practice
The German lapped in one minute 48.650 seconds in the second session to beat Renault's Fernando Alonso by 0.274secs.
Rubens Barrichello topped the first session ahead of his Brawn team-mate and championship leader Jenson Button.
Renault's Romain Grosjean and then Red Bull's Mark Webber crashed out on the dusty, slippery street circuit.
The first session was stopped for 10 minutes half-way through after Grosjean lost control of his Renault and crashed at Turn 17.
The Frenchman's mishap was laden with irony as it was at the same point where former Renault driver Nelson Piquet Jr was ordered to crash last year, the controversial race-fixing incident which saw Renault handed a suspended ban from F1 this week.
We're here to do the best job we can as normal, keep our heads down, and put everything that's happened in the past few weeks behind us
Acting Renault team boss Bob Bell
Webber, who was third fastest in the first session, was running aggressively at the top of the timesheets around the hour mark of the second when he crashed head on into a wall on the pit straight.
That meant that despite finishing sixth under the lights the Australian, who has faded somewhat from the championship battle in recent races, lost running time and only managed 14 laps.
"It was simply driver error," Red Bull team boss Christian Horner told BBC Sport.
Alonso, who won the now-infamous Singapore race in 2008, was fourth fastest in the first session.
BBC SPORT | Motorsport | Formula 1 | Vettel heads Alonso in practice
