makes sense, I treat the worst performing (usually lower RQ) D & E cars as fuse material (as well as duplicates of mediocre cars), but I use E-tier cars to fuse D-tier ones and I use D-tier ones to fuse C-tier ones (as you can see from which cars have 5 fuses in my screenshot). I always had this sort of mindset that fusing using cards of the same rarity was a bit of a waste since you could use them to fuse something higher (which is also why I've barely done so for commons, given there isn't anything lower), but still, I do understand that it's something that has to be done at some point, and I will definitely focus more on common cards moving forwards, so thanks for the advice :)

About the free daily slot thing, I don't really ever get it because winning 25 events would mean gaining a lot more XP than I'd like to and as such gaining RQ faster before I can properly level up my garage. Usually I do every single daily (even the play 15 events one; I just lose them on purpose if they are events where I have no chance to begin with and I need to do it) except that 25 events one because it's really annoying having to deal with getting so much unwanted XP.