Mark Webber, Timo Bernhard and Brendon Hartley have won the 2015 FIA World Endurance Championship, following a dramatic and nail-biting season-ending Six Hours of Bahrain that saw Porsche's sixth win of the season.
Webber took the No. 17 Porsche 919 Hybrid to a fifth place overall finish, after two trips to the garage for engine and hybrid-related issues for the pole-sitting car, which dropped them down the running order and in jeopardy of winning the Drivers' World Championship.
The No. 18 Porsche of Neel Jani, Romain Dumas and Marc Lieb took overall victory on Saturday, edging out the No. 7 Audi R18 e-tron quattro, highlighted by an epic duel between Lieb and Benoit Treluyer.
The two factory LMP1 drivers swapped the lead multiple times, in a return to form for the Audi, which was out front at the halfway mark in a bid for Treluyer, Andre Lotterer and Marcel Fassler to take the drivers' title.
Their hopes, however, were dashed in the fourth hour when the sister No. 8 Audi of Loic Duval suffered brake failure, requiring a complete replacement of the left-front suspension and dropping them behind the No. 17 Porsche.
Webber, meanwhile, limped his 919 Hybrid home with hybrid issues, but enough to give the Australian his first drivers' championship of any kind, alongside co-drivers Hartley and Bernhard. who also pick up their first WEC crown.
It came one race after Porsche wrapped up the Manufacturers' World Championship in Shanghai, in a race that also saw Porsche claim all three titles in GTE-Pro.
The No. 2 Toyota TS040 Hybrid of Mike Conway, Kazuki Nakajima and Alex Wurz, in his final race, completed the podium in third, benefiting from the attrition-filled race, but enjoying its best run of the season.
It marked only the Japanese manufacturer's second podium finish of the season after a challenging year for the outgoing world champions.
LMP1 Privateer honors went to the No. 13 Rebellion R-One AER of Alexandre Imperatori, Dominik Kraihamer and Matheo Tuscher, which finished 11th overall after another incident-filled race for the non-hybrid prototypes.
Imperatori edged out the No. 4 ByKolles Racing of Pierre Kaffer by one lap for the car's second class victory of the season and first since the 24 Hours of Le Mans.
G-Drive Racing claimed the LMP2 title with a class victory by Sam Bird, Roman Rusinov and Julien Canal.
A late-race pass by Bird on the No. 47 KCMG Oreca 05 Nissan of Nick Tandy with 15 minutes to go saw the No. 26 Ligier JS P2 Nissan take its fourth class victory of the season.
The sister No. 28 G-Drive entry of Pipo Derani, Ricardo Gonzalez and Gustavo Yacaman completed the podium in third, ahead of the Shanghai class-winning Signatech Alpine in fourth.
The winning G-Drive trio needed only a fourth place class finish or better to clinch the title. It marked the Russian-backed team's first world title after losing it in the season-ending race last year.
Porsche has won the GT Manufacturers' Cup, with Richard Lietz taking the drivers' title, following a dominant race-winning run in GTE-Pro for Porsche Team Manthey.
Fred Makowiecki took the No. 92 Porsche 911 RSR to 39.316-second victory over the No. 51 AF Corse Ferrari 458 Italia of Toni Vilander, in a race that went the way of the German manufacturer nearly from the start.
The No. 92 Porsche took over the lead early in the opening hour, with Patrick Pilet getting around Vilander's pole-sitting Ferrari and extending its lead over the pair of Prancing Horses.
However, an unscheduled stop in the fourth hour for a loose wheel saw Davide Rigon's No. 71 Ferrari drop from third to sixth, which was enough for Porsche to claim the manufacturers' title.
Lietz and co-driver Michael Christensen drove a quiet race to finish fifth in class, but it was enough for the Austrian to take the world title.
The No. 97 Aston Martin Racing Vantage V8 of Darren Turner and Jonny Adam completed the GTE-Pro podium in third, ahead of the all-Danish No. 95 Aston, with both of the cars having showed improved form.
AMR's Pedro Lamy, Paul Dalla Lana and Mathias Lauda took the win in GTE-Am, with SMP Racing being crowned as class champions.
Lauda edged out the No. 88 Abi Dhabi Proton Racing Porsche of Klaus Bachler for their third class win of the season and first since Spa in May.
The No. 77 Dempsey Proton Racing Porsche of Patrick Long, Marco Seefried and Christian Ried completed the podium in third.
SMP's Andrea Bertolini, Victor Shaytar and Aleksey Basov, meanwhile, were crowned GTE-Am champions with a fifth place finish in their Ferrari.
