Pedro de la Rosa impressed with Prost.

Prost Grand Prix's test driver, Pedro de la Rosa, had his first full day of testing on Tuesday at the Estoril circuit in Portugal.

He said: "I'm really impressed by today's test session. I believe this is the best F1 car I've ever driven and it should be within the top ten this season. We've been testing different set-ups and Michelin tyres. Ferrari's engine and gearbox are superb, the engine is very flexible and user-friendly. Honestly, I'm extremelly happy".

Pedro de la Rosa set a time of 1 minute 19.56 seconds.