Talk:Endurance Kings/@comment-174.69.62.121-20170617193912/@comment-25956839-20170617202432

"All tiers and 89% completion can be reached without upgrades."

This is correct! The assumption is the player has all LMP1 cars, see RR3 Wiki:Real Racing 3 Tips and FAQ, for the different possibilities, for one or two LMP1 (2014) cars.