While downloading the latest Mario Kart Tour update I saw this on the Play Store and decided to check it out. I tried the KartRider Drift beta on Xbox One, but I had no idea a mobile version was being made.
For starters, anyone who hated the controls or vertical orientation of MKT will be glad to know that this game is played horizontally and uses big virtual buttons that work pretty well. The gameplay is your standard kart racer stuff with drifting that feels a little more realistic than most, and you can choose between several different modes. There are standard races focused on pure skill, item races that add wacky weapons, relay races where you and another player both race one lap, time trials, and even a whole voice-acted Story Mode to play through. The online is really snappy, and I was able to get into races within seconds of joining a lobby. You can send quick messages to the other players and voice chat within the lobbies. I didn't mess with it much, but strangely enough you can even own a house and play some minigames with friends there.
My main mobile game turn-off was thankfully nowhere to be seen, as there are no timers or stamina meters to limit your playtime as far as I could tell. However, similar to games like Fortnite, there are a ton of cosmetics to spend money on as well as several passes and subscriptions. I did see a few things that appeared to give gameplay advantages in the item mode, but since the itemless mode is considered the default, it doesn't seem too bad.
Overall, the game seems extremely polished and I definitely plan on playing more. If you've been looking for a mobile game to scratch the kart racing itch, you might want to check this one out. Also, I present this screenshot without comment: