The only people who have actually made real mods so far and sold them are LucasBE and Aljowen, whose mods can be found here and here. EDIT:Crashhard's Dummy is also a good quality paid mod. Please, do not give grifters like kennemation money, they steal meshes from games like forza, spend about an hour slapping the mesh onto the physics model of a default car with no care whatsoever, then charge you a ridiculous amount of money. you should never expect a reasonable car mod to cost more than $10 unless you commission it.
Here's a list of everyone selling paid mods(in no particular order): lucas BE(cherrier picnic) crash hard(dummy 2.0) Net_nuka(car mods on VK) People on mod land(just search '[paid]' on there) tons of sellers on patreon(best of the best) iamthelaw105(sells tons of car mods on gumroad) crownconcepts(early access to mods) the list goes on(it's not hard to find even more) Have fun and try to not empty your wallet buying mods!
Does nobody else think it's a little suspicious that someone with a low post count and no profile picture is asking where all the paid content is?
anyone can set up a patreon or gumroad nowadays, so the average quality has plummeted however there are some good modders still