12x4 - Top Gear

Sixty years ago Fiat's new factory at Lingotto in Turm was hailed as a masterpiece of industrial building. Now it has been turned into giant exhibition halls. Today for the first time they house the Turin Motor Show. William Woollard and Chris Goffey report. Frank Page climbs to the famous roof-top test track and there's a look at the new Lancia Thema. David Willey reports on the harsher realities of Italian life - bullet-proof cars.