My mum had a car called an Imp and I was convinced that the noise the indicators made was the car saying 'take look', which told other cars to look out because we were turning.
For years I believed that indicators were called 'take looks'. It probably didn't help that my parents humoured me by calling them that.
A childhood belief about cars

others believed things like this
- I believed that the breed of dog called Boxer was called that because they could stand up and box.Anon
- I used to believe that a penis was called a bobby because my mum told me... I believed this until I was 15.— Patricia
- i used to believe the turning signals on cars helped them turn sharp corners.— Julia
- Until I was about four and a bit my father had me convinced that Friesian cows were called "big cats".— Chris
- When I first started learning to read I was convinced that vowels were called barnacles.— Andy Howell
- Until I was about 12 years old I believed that homeless people were made up by my parents to scare me.— Angela B.