What you know about cars might not fit in an encyclopedia--or even Wikipedia.But for more casual fans and car shoppers, there's plenty to know and learn about cars. Not just the facts, man--like how to change your oil, or why diesels make more sense than hybrids--but cool trivia bits that will impress and confound your friends.Did you know someone actually swapped out an engine in a Ford Escort...in 42 seconds? Or that most car horns beep in the key of F? Or that it would take about 157 days to drive to the moon at 60 mph?You do now. Take in the infographic here and learn 16 things you never knew about the automobile.