 However, Peugeot retaliated with an uncharacteristic public revelation of the engine's output of 792 bhp, which was considered to be competitive at the time.Prost's criticism of Peugeot soured their relationship and combined with the lack of results, the latter withdrew from F1 as an engine supplier.Alesi and Heidfeld were unable to make much of an impression, but the Frenchman managed to qualify eighth at Monaco and run fourth at Spa-Francorchamps before retiring.