u/National-Reveal5118

I know lots of questions like these get posted, so hopefully I haven't overlooked one that's answered mine recently. Sorry if I have. But I'm looking to buy an S550 Mustang for work. I do a lot of driving. (Over 1,000 miles in one week)

I've been searching on Facebook marketplace for anything under $20k and under 100k miles. I can not afford to break down or have issues while on the road. Is this reasonable? Most of what I'm seeing has rebuilt titles, which is a little worrying to me. And I don't particularly care if it's an ecoboost, better gas mileage is always a plus. What would you guys recommend looking for?