Now I seen everything.....

I was sitting at a stop light a couple of days ago in my '09 Ram when a Smart Car fender pulled into my peripheral vision beside me. All I noticed was the front of the fender but the sound made me curious enough to look over.
At first I thought it as a Smart Car with a "fart can" muffler - my immediate thought was "Why?" - but then I noticed a 2-stroke street-ridden dirt bike sitting on the other side of the Smart Car.