Yeah there is. And what a coincidence, I'm trying out Mario Kart 64 and Super Circuit for the first time on the Expansion Pass.

It really is a different case for each track. Some allow Baby Daisy Biddybuggy to do a lot of snaking drifts, while other tracks are longer and need more speed so they use Waluigi Biddybuggy. While Baby Daisy Biddybuggy is the fastest strictly speaking, Waluigi Wild Wiggler is the most common in competitive play due to its higher speed and weight stats.

Do you have some ideas on how to visualize this?

You hit the nail on the head. Baby Daisy instead of Waluigi is only the better if you're already good at the game. Using her snaking drifting technique will only save time if you're one of the top speedrunners.

In multiplayer and online, having low weight is a bad thing in competitive play, as you can easily be bumped into walls or off the track. Most competitive players will use a combo with more speed, Waluigi on Wild Wiggler/Azure Roller/Paper Glider (the same one as the Mario Kart Stadium world record).

That's not really the whole answer, Baby Daisy instead of Waluigi is only better if you're already good at the game. Using her snaking drifting technique will only save time if you're one of the top speedrunners. Like, I've been doing time trials for hundreds of hours and I'm still not good enough to save time with Baby Daisy.

In multiplayer and online, having low weight is a bad thing in competitive play, as you can easily be bumped into walls or off the track. Most competitive players will use a combo with more speed, Waluigi on Wild Wiggler/Azure Roller/Paper Glider (the same one as the Mario Kart Stadium world record). Since this combo is a heavy one, that makes anyone using a lightweight combo vulnerable to almost everyone.

• Source: mkwrs.com
• Source: mariowiki.com