What's the difference between a BMW and a porcupine?
Unlike the porcupine, the pricks are on the inside.
What's the difference between a BMW and a porcupine?
Unlike the porcupine, the pricks are on the inside.
Listen up, buttercup! The joke is about how BMWs are often associated with drivers who are jerks. Get it? So the punchline is sayin' that the "pricks" (a-holes) are not on the outside of the car like a porcupine's quills, but INSIDE... driving the car! You probably drive a BMW, don't you?