However, the Benetton B191, on Pirelli tyres, was not as competitive as anticipated, and Moreno's best results were 4th place at the Monaco Grand Prix and the Belgian Grand Prix.
Con todo, o Benetton B191, cos pneumáticos Pirelli, non era tan competitivo como anticipábase, e os mellores resultados de Moreno foron o 4º lugar en Mónaco e Bélxica.