Sauber will reveal its 2015 Formula 1 car prior to its track debut in Jerez with an online launch for the Ferrari-powered C34 on 30th January.

The Swiss team heads into 2015 with an all-new driver line-up of Marcus Ericsson, who moves from Caterham, and GP2 graduate Felipe Nasr, the outfit eager to put a torrid 2014 season firmly behind it after failing to score a single point.

Rumours suggest the car will adopt a more colourful livery than that of last year's predominantly black design, with Nasr's Brazilian sponsorship expected to feature heavily.

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Contrary to earlier plans, Sauber says Ericsson will drive the car on Sunday and Wednesday, with Nasr getting time in the car on Monday and Tuesday.