Ford's Fusion has made big inroads against import brands, but now the imports appear to be fighting back. Photo credit: Ford Motor.

Ford (NYSE:F) has made nice gains in the U.S. market (and elsewhere) as its much-improved product line has rolled out over the last few years. This year has been no exception: Ford's Fusion sedan has made big inroads into the market share of Toyota's (NYSE:TM) Camry -- so much so that Ford has added a second assembly line for the Fusion to meet strong demand.

But even as Ford has been posting gains, exchange-rate shifts have given Japan's automakers an advantage -- and some analysts are predicting that Honda (NYSE:HMC) and Nissan (OTC:NSANY) will post big sales gains for August, while Ford falls behind. In this video, Fool contributor John Rosevear looks at the latest estimates -- and offers his view on how Ford is likely to respond.