Cost down and Where Have All the Vent Windows Gone? It boils down to two things: With air conditioning a standard feature more and more, the cooling effect of the vent window (“quarter glass,” actually) was no longer needed. The slight drag created by an open vent made the auto less aerodynamic, and decreased fuel efficiency.
As far wheels........there are plenty of auto and truck OEM and aftermarket steel wheels that are less than perfect for radial and axial runout. 1
Same with OEM and Aftermarket steel wheels with cracks and other failures. [img]http://[/img]
