With modern air conditioning and controls and quieter ride it would be rare to have our cab windows open to need or desire air deflectors. With six awning windows, we would never crack our cab windows when parked. I would think maybe they would appeal to an ash flicking smoker.
2015 Advanced RV Ocean One Mercedes Benz Sprinter
Previous Class Bs:
2011 Great West Van Legend Sprinter
2005 Pleasure-way Plateau TS Sprinter