Your car sounds awesome! Congrats on getting a license and quickly getting a car. That's a huge accomplishment you should be super proud of. I think people are just teasing you about the colour and you should try not to take them too seriously; it's much more likely that they are envious than actually trying to bring you down, and even if they were, screw em, you're the one achieving things!

Just try to enjoy your bf's company because he sounds very sensible and caring. Keep your chin up, I'm optimistic for you