Same motor, but 2 different approaches to auto stop/start. ESS and BSG/eTorque. I believe the 2020 Rubicon has ESS, and the Sahara is the only model that has BSG. Your window sticker should confirm whether I'm right or not.Is there 2 options of 2.0 turbo engines? How do I know what I have? I have a 2020 regular Rubicon 2.0....I think.