Overview: Three out of every 100 new cars sold in Britain today have been made in an Iron Curtain country or South Korea. William Woollard travels to Poland for tonight's programme with a special report on the way in which the Poles, along with their Eastern Bloc partners, are carving out a significant foothold for themselves in our marketplace. Meanwhile, back at home, Sue Baker has been conducting her own series of road tests on the cars the communist countries and the Koreans have to offer. They may be cheap - but are they really good value for money?