Mika Hakkinen said at the presentation of the new McLaren-Mercedes, at Estoril (Portugal), he has a goal for this season: winning races. Alain Prost tested the new McLaren with the Mercedes V10 engine at Estoril yesterday. He drove 35 laps without having technical difficulties and came to a best of 1:23.5. Gerhard Berger was just slightly slower with a fastest time of 1:23.9 in the new Benetton-Renault. But fastest of the day was Katayama in the all new Tyrrell-Yamaha with 1:22.31.