Hah. I saw it. Slots aren't exactly my thing. Too small. Too fiddly. Too limited to the track. Basically the same 'problem' as 1/12 pan-cars/f1
Just blurs whizzing around. I'm also a tad too much of a scale-afficionado. I like to see the details. When still racing 1/10 F1 I tended to kit my cars out with faux wing cams, antennae, visors for the helmet, brake lines etc. And then a colourful blur whizzing around @ 110km/h or faster

Oh, and three or four sets of sponge tires each racing weekend, endless tweaking of brushes, springs, winds. Well You know the drill.
Buggies are bigger, brasher, not as fast as slots, or even 1/10 TC, run anywhere without constantly scraping the ground, or getting catapulted by tiiiny pebbles

And I like running around in the muck.
The Traxxas funnycar is a bit of an outlier I have to admit. Vèry limited in places to run. Steers like an oil tanker, blows-over as easy as a leaf in a storm....
That's also nice about 1/16 tanks. They are fun to run, even in a tiny 5m by 5m quite unkempt garden.
B.o.t If You want 'fast' (however limited with a tank) without a slot to provide 12/24 v at many amps, there's no other way than going brushless. Take a good browse at hobbyking's offerings in 28xx size motors, and their affordable esc's.