BMW is expected to continue its relationship with Rahal Letterman Lanigan in IMSA’s WeatherTech SportsCar Championship series as part of a new multi-year extension.

Multiple sources have told RACER the BMW Team RLL program, which has been on a tear since July with three wins in IMSA’s GT Le Mans class, will remain intact through 2020. A formal announcement is expected next week during the Petit Le Mans season finale at Road Atlanta.

BMW Team RLL was formed in 2009 as the German manufacturer and Ohio-based team joined forces to tackle the American Le Mans Series’ GT2 category. Success was found with ALMS Drivers’ and Teams’ championships, along with big wins at the Mobil 1 Twelve Hours of Sebring, using the M3 model before switching to the Z4 coupe and eventually moving to IMSA in 2014.

Popular wins at Long Beach and Mazda Raceway Laguna Seca concluded the Z4’s run at the end of 2015 when the new M6 model was introduced for a two-year stint. With the twin-turbo V8 M6 set to be retired after Petit Le Mans in favor of the new M8, it will mark the fourth new chassis developed by the partners in North America.

During the most recent contract bidding process, Andretti Autosport, among other members of the IMSA paddock, were considered for the BMW GTLM program until RLL was ultimately selected.