Won a car!

Boy- "Dad, dad, I'm the 999,999th visitor to this website and I've won a car"

Dad- "Forget it son, those ads are a complete con"

Boy- "no dad it's real, they say it come fully MOT'd, and insured, all I have to do is pay for the petrol"

Dad-

Spoiler:

"EXACTLY, it's a con"