Dont know where you heard that mate to be honest, Last year was the first time the UK plant made a profit since its been here, massive investment by TMC (main Japanese Toyota) and sales increase every year, to the point where they've past the target for european sales for the last 10 years on the trot!
Not that I'm bothered cause its a shit place to work and their a shit employer and can gaurentee i wont be there this time next year