Looking into a used truck online but have no idea if it’s a scam

Okay to preface I am from TX but currently working in MS.

I have been looking at a truck online from: Vehiclemaxauto.com

The truck seems to be in good condition but somehow the deal seems too good to be true.

On the website they claim to deliver cars anywhere in the US at a competitive price (this is not the issue)

To do so they ask for the full amount of the vehicle up front with a 9 day period to check if anything is wrong with it, if so you get all your money back.

I have looked them up on google and it seems sorta weird.

My main question would be if this place even exists and if so are they worth dealing with.

Thanks in advance..