LONDON -- Ferrari has continued its preparations for the Malaysian Grand Prix on March 17 by testing both its 2001 and 2002-spec chassis in Italy.

Brazilian Luciano Burti concentrated on the development of new Bridgestone tires as he covered 98 laps of the Fiorano circuit in the F2001 car, the model used by reigning champion Michael Schumacher to win the season-opening Australian Grand Prix last weekend.

At Mugello, Italian test driver Luca Badoer completed 79 laps in the new F2002 model during an eight-hour spell as Ferrari aims to satisfy reliability concerns before it introduces its 2002-spec car to this season's world championship.

Meanwhile, Spaniard Marc Gene topped the timesheets at Silverstone in his Williams as he posted a best lap more than a second quicker than British American Racing tester Anthony Davidson of Britain.

Renault's Fernando Alonso also completed a full day's program as the Spaniard finished third quickest.

"Fernando completed a tire programme for Michelin this morning, finding a very positive step for the Malaysian Grand Prix and beyond," said Renault technical director Mike Gascoyne.

"This afternoon we conducted electronics development as well as a small amount of set-up work aimed at maximizing tire performance."

Wednesday's testing times at Silverstone:
1. Marc Gene (Spain) Williams - 1:23.735
2. Anthony Davidson (Britain) BAR - 1:24.811
3. Fernando Alonso (Spain) Renault - 1:26.198