There's a big difference between simply being a prostitute (or hundreds of girls being prostitutes) which is not illegal, and the police observing the offence of prostitution or soliciting taking place, as one other very wise poster commented.
Depends if the warranty was extended by the dealer which I doubt. Porsche offer up to 36 months warranty.
All Porsche models, legitimately imported, have a 4-year warranty.
What's his issue (apart from a pedantic "is it '20 or '21") when he can get it fixed under the Porsche warranty? I doubt that any dealer offers a money-back guarantee for used cars.
Prefacing every action with "I'll go ahead and [do something]" or "I went ahead and [did something]"
"I went ahead and called a taxi". Proper English, "I called a taxi".
"I'll go ahead and have another beer". Proper English, "I'll have another beer"
I'd assume that your ex-spouse would have to file a claim in the country where the assets are, not in Thailand, and where they are covered by the pre-nup.