Daddy, make the car loud!

"Daddy, make the car loud!"  I heard this from the back of the minivan on our way to the library.

"What do you mean Jr, turn the radio louder?", I ask.

"No, make the car LOUD."

"I don't understand; what do you mean?"

"LOUD like the convertible!"  He must have heard a loudish convertible earlier.

So I asked "Do you mean like this?" as I rolled on the gas as the light turns green, hoping for some sweet Sienna V6 engine notes; I wasn't expecting what really happened.  The engine roared, and the tires spun with a loud squealing sound, shaking the van as we laid down some rubber.  Jr and DT loved it, and now they ask to make the car loud every time we ride in the van.