Fernando Alonso was left perplexed by the extent of his power deficit in Bahrain, which ended with his third retirement in as many races.
The Sakhir race -- home of McLaren's owners -- saw Honda reach a new low, with Stoffel Vandoorne failing to make the start and Alonso failing to make the finish to cap a weekend blighted by engine issues. Despite the limitations of the engine Alonso, who this week revealed he will miss the Monaco GP to contest the Indy 500, turned in another gutsy drive and was on the cusp of the top ten for the whole race until he retiring two laps from the finish.