I've played its wii u and switch counterparts and in terms of the amount of features and the high quality of mario kart's gameplay, it is the definitive MK title until a new one comes out most likely. King of kart racing, there's not much that needs to be said. I only wish they smashified it more beyond adding splatoon, LOZ and animal crossing in its racing roster.
10 years after it's initial launch on Wii U and we are still playing this game. Yeah, it's frustrating, but if you stop to think about it, it's no secret why Nintendo seems reluctant to release a new entry (putting aside the fact that it's their second best selling game of all time). Mario Kart 8 Deluxe is the formula perfected. Where do they go from here? Genuinely.