As far as Hyundai taking aim at Mitsubishi, Hyundai sold 677,946 vehicles in the U.S. in 2018.
If you combined Hyundai/KIA sales, they are on the heals of passing Nissan. Hyundai alone was 8th behind Subaru (7th). KIA was 9th.
I don't see Hyundai taking aim @ 16th place Mitsubishi (excited about passing 100,000 sales last year) with their new Accent. Hyundai/KIA are trying to compete with Toyota & Honda.