LONDON -- UK car production fell by 16 percent in May, the 12th month in a row of declines due to falling demand at home and abroad and the continuing threat of a no-deal Brexit, the Society of Motor Manufacturers and Traders (SMMT) industry body said on Thursday.
The sector has also been hit by a slump in demand for diesel vehicles, and new emissions regulations in recent months.
Britain produced 116,035 cars last month, according to data released by the SMMT. Manufacturing for export fell 13 percent, while for the domestic market, it fell 26 percent.
Output is down 21 percent so far this year, hit partly by some plants shutting down in April in preparation for a possible disorderly Brexit in March, but Britain's exit date has now been postponed until October.
The SMMT has warned against a "seismic" no-deal Brexit at the end of October, which it said could add billions of pounds in tariffs and cause border disruption, crippling the sector.
"12 consecutive months of decline for UK car manufacturing is a serious concern and underlines yet again the importance of securing a Brexit deal quickly," SMMT CEO Mike Hawes said.
Nissan, Toyota and Honda are among automakers that build cars in the UK, along with BMW Group's Mini and Rolls-Royce brands, Volkswagen Group's Bentley, Tata's Jaguar Land Rover and the PSA-owned Vauxhall unit.
Automotive News Europe contributed to this report