She told him, "Tomorrow morning, I expect to find a gift in the driveway that goes from 0 to 200 in 6 seconds and it had better be there!"
The next morning he got up early and left for work.
When his wife woke up, she looked out the window and sure enough there was a box gift-wrapped in the middle of the driveway.
Confused, the wife put on her robe and ran out to the driveway,and brought the box back into the house.
Spoiler:

