Sebastien Buemi took victory in the World Endurance Championship season-ending Six Hours of Bahrain with team-mates Anthony Davidson and Kazuki Nakajima.
Buemi, in the #8 Toyota, finished a lap ahead of the Porsche #2 featuring Timo Bernhard, Earl Bamber and Brendon Hartley.
New Formula E duo Neel Jani and Andre Lotterer finished third ahead of the #7 Toyota of Mike Conway, Kamui Kobayashi and Jose Maria Lopez.
Andretti Autosport driver Kobayashi was involved in a collision with a Porsche GTE car which meant the #7 Toyota received a stop-go penalty.
Former Mahindra driver Bruno Senna secured the LMP2 drivers’ title with Julien Canal with a class victory in Bahrain.
The Brazilian driver lost power steering in the final hour of the race.
Nico Prost competed with Senna in the #31 Rebellion but did not claim the drivers’ title as he missed the Six Hours of Nurburgring race to compete in the New York ePrix.
Piquet, who drives the sister #13 Rebellion, finished third in class (seventh overall) with team-mates Mathias Beche and David Hansson.
Techeetah’s Jean-Eric Vergne was sixth in LMP2 for Manor TRS Racing.
DS Virgin Racing’s Sam Bird led an AF Corse 1-2 in the GTE Pro category as the #51 AF Corse claimed the drivers’ championship in the category.