Nico Rosberg has played down his and Mercedes' lap times on the medium tyre after getting to within three tenths of Romain Grosjean's test-topping fastest time on super-soft rubber.

Considered to be the first indication of Mercedes' true pace having concentrated its efforts on longer runs and reliability with the W06, Rosberg's ascension up the timesheets in the afternoon on the medium compound tyres proved particularly eye-catching.

Setting a best time of 1min 24.321secs for the second fastest lap of the final day and the test overall behind only Grosjean in the super-soft shod Lotus, Rosberg was nonetheless relatively unmoved by the result.

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"If you say so," he responded when it was suggested how strong the lap was. "Not so much when we are looking at times from other days and things like that, but I think we are getting there. Anyway, we are confident and think that we have a good car."

Nevertheless, last year's runner-up says he is feeling 'confident' heading into the final test of the pre-season, claiming Mercedes is in a 'good position' as it stands.

"Good end to the test, no major problems on the car today. We got some good running in the end and we learned something once the wind dropped down and we did some decent lap times.

"[I am] Confident. We have a great team now. We keep a close eye on the opposition because there have been some strong times from other teams, so it is not clear-cut at the moment, but I think we are in a good position."

Rosberg's day didn't go entirely to plan after he suffered a spin early on in the day, beaching his Mercedes in the gravel trap at turn five.