Tests f-1 in Barcelona. The first problems of Mercedes, the best time Vettel

The penultimate day of pre-season tests Formula 1 in Barcelona memorable first problems of Mercedes.

In the second part of the day Lewis Hamilton was forced to stop on the track due to problems with the motor. A positive sign for competitors, who are not impressive.

Best time of the day showed the pilot Ferrari’s Sebastian Vettel, although the top teams again, not trying to show speed. In the top 3 with a small gap included Pierre went Out and lance Stroll.