LMP1 teams will be back on track shortly, as Toyota, Porsche and Audi have all scheduled testing to begin this month in preparation for the 2015 FIA World Endurance Championship season. (En Français)

Porsche, which has already rolled out its 2015-spec 919 Hybrid, has a five-day test scheduled at Yas Marina Circuit for Jan. 18-22, while Motorland Aragon will play host to separate tests for Toyota and Audi at the end of the month.

Defending FIA WEC champions Toyota will have a three-day test at the Spanish circuit, including a night session, while Audi has four days scheduled for its updated R18 e-tron quattro, also at Aragon.

Porsche will return to the Middle East in early February for a five-day test in Bahrain, while Toyota remains in Europe and conduct further tests of its TS040 Hybrid at Portimao.

Audi will again utilize Sebring for its traditional five-day test at the Florida airfield circuit, scheduled for the first week of March, two weeks prior to the Mobil 1 Twelve Hours of Sebring.

While all three of the returning LMP1 manufacturers have solidified tests, newcomers Nissan has not yet registered its testing dates with the FIA.

It’s understood the radical Nissan GT-R LM NISMO has already completed its first circuit test last month in the U.S., with its official launch set for Feb. 1 during the Superbowl.