For quite a while now, there’s been a bit of a tit for tat going on between two OEMs in the trucking industry – Daimler Trucks and Navistar International.The two companies have waged an advertising-public relations war about which company has the most aerodynamic truck in the industry – the Freightliner Cascadia or the International ProStar.I would be lying if I didn’t say that it’s been a bit