Related StoriesNew Ferrari signing Sebastian Vettel topped the first day of 2015 Formula 1 testing at Jerez on Sunday. (Larger image gallery below.)The four-time F1 world champion first moved to the top of the times in the afternoon with a short run, returning to the track after a long delay...

Related StoriesSauber unveil its 2015 Formula 1 car, the C34, on Friday.After a disappointing 2014 F1 campaign, where it failed to score a single world championship point, the Swiss-based outfit is hoping it can rediscover the form that had it fighting for podiums in previous seasons.Sauber has opted for a...

Sauber will unveil its 2015 Formula 1 car via its website on Friday, Jan. 30. The Swiss team's Ferrari-powered C34 design will be revealed two days before 2015 F1 testing commences at Jerez.Sauber is desperate for an upturn in form this season after a tough 2014 campaign that ended with...