HA I just remembered that a thumbs up gesture in some parts of the world (areas of Italy included) means "Up Yours!" lol
Had that happen with my old 512BB, he said hey Magnum, if it bothers you get something else like a Diablo, people just **** there pants when they see it lol.
I'm in this camp. Embrace it. Have fun with it. Wear a Hawaiian shirt. whatever you do, don't take yourself too seriously. TBH, I wish there was an iconic pop culture reference for my car. Last week I thought about buying the magnum Pi box set DVDs actually. But I guess if you want to go with the thin-skinned response, you could say something like "I don't know that show....must have been before my time".
Nah, even better 'did your girlfriend tell you what brand of condoms I use, damn, I'm really sorry chum. At least she enjoyed herself!'
I get the comment occasionally in my 328. The times I have gotten it, I don't think people were trying to be jerks. I think it was more as a way to start a conversation / try to relate to the car because it is something uncommon and which a lot of people think are six figure cars that "normal" people cannot afford and so have not had exposure to. In such instances, I politely let them know it is similar but not the same car and then tell them about the differences if they actually seem interested.