Had a devil of a time finding a good cartoony cart racer for PC. Giving Team Sonic Racing a try this weekend.
The great thing about having a young kid who's just getting into gaming, it really leans me into patience. We get to revisit a TON of old games, and they're CHEAP.
When then kids are ready (mine had some learning curve with the added flying) be sure to also eventually grab Sonic Racing All Stars: Transformed. It's fantastic.
I'll preface this by saying that I haven't played it in probably at least two decades, but I used to love Wacky Wheels. I believe it's on Steam now, too.