Volvo box

"When I saw your advertisement, 'Vovlo for sale, I was expecting a car, not a wooden box."
"This wooden box, designed by Volvo engineers, has been carefully crafted to meet the demands of the 21st century box owner."
"What's inside the box?"
"A wind tunnel."
"How can a wind tunnel reside inside a wooden box?"
"It's a miniature."
"Okay then. I'll take it."
"I'm sorry sir, it has been withdrawn from sale."