Honestly you can't trust a lot you see in ads. You can't even trust your manufacturer or the dealership selling the cars. Some brand new cars are sold with TSBs that haven't been fixed or addressed. I use https://www.carcomplaints.com/ when I'm shopping for a car to know which used cars to avoid.
Often, the salespeople don’t actually know anything about the vehicles they’re selling either. I’ve had salespeople who don’t know the engine or transmission configurations of the cars on their lots. I spent a long many emails recently trying to explain to a Toyota sales rep how payload capacity works. Even after meeting him in person and explaining it to him again, I was totally unable to get the real payload number…
Their job is not to inform you. Their job is to sell cars.