Jaguar, Aston Martin, Caterham, McLaren, Rolls, Bentley, Lotus.... all made in the UK. Most no longer owned by Brits, but still made there.

The Vauxhall Astra is also made in the UK, which is a bit of a black eye. 

Nissan, Honda, Toyota also make cars in the UK, including Europe's best selling SUV, the Nissan Qashqai