2015 my best year in F1: Hamilton

British Formula One champion Lewis Hamilton believes his third World Championship title in 2015 has capped his best year in the sport.

The Mercedes driver won a thrilling United States Grand Prix on Sunday to seal the drivers' title with his 10th victory of 2015. The 30-year-old's ninth season at motorsport's top level has seen him become the 10th driver to win three or more drivers' crowns and the first Briton to claim back-to-back titles.

Hamilton, whose previous two title victories came in final-race deciders, reckons he has never been in better form.

"It has been an amazing year. This has been the strongest year I think I've ever had. I just can't believe it," Hamilton was quoted as saying by Sky Sports on Monday.

Asked if being remembered for his eye catching driving style was even more important to him than being remembered for his achievements, Hamilton replied, "The titles are a great thing to have."

"There's a saying: if you're not enough without it, you'll never be enough with it. So I think if I'm ever remembered I want to be remembered for the stuff outside of the car, and those things (titles) are the cherry on top on the cake," he said.

The British racer has also been in the news in recent times for reasons other than his achievements on the track. Hamilton's interests beyond motorsport, from music to fashion, are regularly documented on social media while he also conducts charity work.

While he says that some of his off-track plans are likely to come to fruition over the next year, his focus on enjoying even more success in F1 remains intact.

"I'm definitely very conscious of my position. The position that I am in, and the fortunate position I'm in, to be able to make a difference in a lot of different areas," Hamilton added.