sentences:  However, the engine was not considered a success, and Nissan quickly ended the program again.They returned again in 2011, sponsoring and supplying engines for the LMP2 Oreca 03 of Signature Plus racing, which was re-branded as Signatech for the 2011 ILMC season.Through its first season, the car has not been a threat for overall wins, but it has scored multiple class wins and won the LMP2 championship.