Renault boss Cyril Abiteboul has labelled Max Verstappen a “very demanding” driver following his regular complaints about the Renault power unit.

Verstappen impressed at the Singapore Grand Prix, but was battling with Renault’s new C-spec engine which suffered from regular drops in power.

The Dutchman was critical over team radio of the Renault engine, but Abiteboul has defended the C-spec and said the team had delivered on what Verstappen and Red Bull wanted.

“We had a drive-ability issue in Singapore in FP1 and into the weekend, and to a far less extent in qualifying,” Abiteboul said in the FIA press conference on Friday.