Are the “free giveaway” car ads on Instagram real?

The ones where you buy a 12 dollar raffle ticket to win a heavily modded sequoia and a renovated camper for example.

In my head there has to be a catch, and not just the “free, but you have to buy a raffle ticket” kind of catch. What is it? Taxes? Is it that they’re just entirely fake? I feel pretty naive even asking this

I’ve seen a few different ones, but I’ll list two:

Forged4x4.com

Vanlife.us