In 2001 the cars now ran with Acer-badged Ferrari engines. The season began with Alesi and ex-Minardi driver Gastón Mazzacane, but after four races, the latter was dropped from the team and replaced by Jaguar's Luciano Burti, who himself was replaced at Jaguar by Pedro de la Rosa. Alesi was very consistent, finishing every race, occasionally in points scoring positions, most notably in Canada when he did a few donuts afterwards and after getting out of the car, threw his helmet into the crowd. It was his best finish with the team. A fallout after the , however, saw Alesi walk out after the . For his final race with Prost, Alesi scored another championship point in that race of attrition. The first start for the race was red-flagged when Burti was launched into the air after crashing at high speed into the back of Michael Schumacher's ailing Ferrari just seconds off the line. Alesi moved to Jordan Grand Prix for the rest of the year, and was replaced at Prost by Heinz-Harald Frentzen, who himself had been sacked from Jordan after Silverstone.