Toyota made 60% more cars at its Derbyshire site last year than in 2012.
The increase marks the biggest growth out of all the car manufacturers in the country, according to the Society of Motor Manufacturers and Traders.
180,000 cars rolled out of its Burnaston factory in 2013.
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A former factory which made coffins for the likes of Princess Diana and the Queen Mother opens today as a Birmingham tourist attraction.
Periods of heavy rain during the morning, then becoming drier through the early afternoon.
Cloudy at first with rain moving southeast across the region.