Haha, nothing makes a P car owner more liked than correcting someone on the pronunciation. I purposely like trying to catch people saying it wrong, or even lure them into it, so I can immediately yell at them with a self-righteous correction.
In all seriousness, I don't really care how others pronounce it. I try to use 2 syllables but sometimes feel a little weird about it.
This Lambo one made me laugh: