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.
https://www.freep.com/story/money/cars/2018/07/03/toyota-win...
Rodents may very well chew bioplastic wires, but they also chew non-bioplastic wires. The fact that users on carcomplaints are convinced that this is a major issue with specific vehicles I think highlights the unreliable nature of self-reports.