Sauber has become the second Formula One outfit to unveil its new 2003 car.

But bad weather prevented the Swiss outfit from testing it for the first time.

Sauber unveiled the C22, which will be driven by Germans Nick Heidfeld and Heinz-Harald Frentzen, at Ferrari's Fiorano test track.

But the facility in Maranello in Italy was under snow and Heidfeld was unable to complete the car's "shakedown" test.

The team will travel to Barcelona to test the car for the first time next week.

The machine was unveiled in unbranded blue livery - the official launch will be in Zurich on 9 February.

The car is an evolution of last year's model, but has adopted a Ferrari-style droop nose.

It is fitted with a customer version of Ferrari's 2002 world-championship winning V10 engine.

Toyota were the first team to unveil their new car when the TF103 was launched in France on Wednesday.