Wed 05 May 2004A stable of prancing horsesIt's a motoring mecca. Teresa Cole visits a museum in San Marino full of historic FerrarisWhen Peter Sellers decided he wanted "the most expensive car in the world", it was to Enzo Ferrari that he turned. The maestro's response - 1,400kg of shiny red steel and cream Connolly leather powered by a 5.5-litre engine - was the 500 Superfast. And, with a price tag of $24,000 in 1964, it clocked in at $3,000 more than the most expensive Rolls-Royce of its day.