I think it's a bit disrespectful and ignorant to do anything like this to some person's property you don't even know.
However, it makes me think about a few things: What's the real point of owning a car like this - Lamborghini, Porsche, Mclaren, Aston Martin? They're all rad cars and surely well made but if you really like it for that reason it's a double edged sword. I'd think most people get these to just show off. With that you'll get those people who are like, "Wow, your car's so cool! Can I see the inside? How can you afford that!" but if you park it on the street it's also the type of car that's going to attract delinquents. If someone decides they want to randomly key a car just to be a shithead on a random street that a Porsche is on they'll probably go for the Porsche.