The route for the Chateau Impney Hill Climb race would be longer and safer than during the 1950s and 1960s, according to the people behind plans to bring it back.
The new course, that runs along roads in the grounds of the estate, is double the 550 yard distance that used to be run.
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Further showers or longer spells of rain for many tonight, heavy at times, particularly over the hills.
Further blustery showers are likely through the night, with these heaviest and most numerous towards the west.