Nico Hulkenberg reckons he has improved as a driver over the last two seasons even though he's managed just seven points this season.
Having made his debut back in 2010 with Williams, the German was dropped at the end of that season and had to settle for a test driver role at Force India.
That, though, led to race seat in 2012 with Hulkenberg then moving onto to Sauber for this year's Championship.
"You are always learning as there are always new circumstances, new tyres, new regulations," Hulkenberg told Autosport of his progress.
"It's my third year. In 2012, I came back after the break in 2011 but now there was the smooth transition from '12 to '13.
"I'm confident I...
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