Complex sentence: TVR is an independent British manufacturer of sports cars and was until 2006 based in the English seaside town of Blackpool, Lancashire but has since split up into several smaller subsidiaries and relocated elsewhere.
Split into simpler sentences: TVR is an independent British manufacturer of sports cars. It was until 2006 based in the English seaside town of Blackpool, Lancashire, but has since split up into several smaller subsidiaries and has been relocated elsewhere.