Vehicular Incongruity in This Photo

I spotted this driving in my neighborhood. It's a $60,000+ Mercedes-Benz ML500 jumbo SUV with a peace sign covering the trailer hitch and a Grateful Dead license plate surround.

I first thought it was oxymoronic, then a bit hypocritical, but those were far too harsh.

I settled on incongruous. Yep. That's the right word.

Vehicular Incongruity