Williams to debut FW35 at second pre-season test

Williams have announced that their 2013 car, the Renault-powered FW35, will be launched at the start of next month's second pre-season test, at Barcelona's Circuit de Catalunya in Spain. However, the team will be running their 2013 race livery - and key development parts for the new car - on last year's FW34 at the opening Spanish test in Jerez from February 5

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