Quote:Chris Evans has announced he is leaving his role as a presenter on BBC Two's Top Gear after one series.
He tweeted: "Stepping down from Top Gear. Gave it my best shot but sometimes that's not enough.
"I feel like my standing aside is the single best thing I can now do to help the cause."
His resignation comes after falling ratings for the show - which hit a series low on Sunday night, with an average of 1.9 million viewers.


BBC News understands the remaining five presenters - Matt LeBlanc, Rory Reid, Chris Harris, Sabine Schmitz and Eddie Jordan - will return for the next series, which is due to begin filming in September.
It is also believed Evans's decision to leave was his alone, and that he told the BBC last week that he was stepping down, saying he was not a good fit for the programme.
Evans joined Top Gear last June, after the departure of Jeremy Clarkson, Richard Hammond and James May.
Clarkson was dropped from the show after he punched a producer following a row about the provision of food late at night while filming on location.
Perry McCarthy, the original Top Gear Stig, told the BBC: "It's sad for Chris but personally I was expecting such an announcement, I wasn't expecting it this quickly but I did think that Chris would step down from it.