Car production increases by 9.3%
There were 94,352 cars produced in April, an increase of 9.3% on the same month in 2011 and up by 11.8% for the first four months of the year.
Almost half a million cars were built in the UK in the first four months of the year, with more than 400,000 for export.
The number of engines built increased by 1.2% last month to 192,408 while commercial vehicle production rose by 3.2% to almost 9,000, although it was 9% down in the year to date.
SMMT chief executive Paul Everitt said: "UK manufacturing of cars, commercial vehicles and engines increased in April, boosted by strong export demand that is almost 10% ahead of last year.
"Sustained investment is delivering desirable products to markets around the world and efforts by employees, trade unions and government are helping ensure the UK remains one of the most competitive locations for global automotive companies."