Fiat 500 to retain its shape for next refresh

At this time, chief Fiat designers are working out on how the next 500 city-car should look.

The 500 has been a runaway success for Fiat and is about to go on sale in the U.S, meekly revised and built in Mexico.

Designers are unwilling to drastically redesign the next 500 and are currently thinking that it should become �our Mini�, hinting at very little alterations.

The second-generation Fiat 500 was launched in 2007 � 50 years after the original model � and came to the UK in January 2008.