The success of Porsche's Le Mans 24 Hours-winning LMP1 programme has been recognised with a John Bolster Award at the Autosport Awards.
The German manufacturer returned to top line sportscar racing last year in the World Endurance Championship with its 919 Hybrid.
Porsche finished that campaign with victory in the 2014 finale in Brazil, setting the stage for its successful '15.
In June, Nico Hulkenberg, Nick Tandy and Earl Bamber claimed Porsche's first outright Le Mans victory since 1998.
Porsche's 17th Le Mans win ended Audi's run of five consecutive victories, and extended its own record for the most wins by a manufacturer.
The race was one of six Porsche victories in the 2015 World Endurance Championship, as it claimed the manufacturers' title in just its second year back, and Mark Webber, Brendan Hartley and Timo Bernhard won the drivers' championship.
The technical director for the programme, Alex Hitzinger accepted the award for technical excellence from 1991 Le Mans 24 Hours winner Johnny Herbert.
"Of course the expectation was high, and we really wanted to win, but we had really such an exceptional season," sad Hitzinger on stage.