. >> reporter: at the polaris manufacturing facility here in huntsville, alabama, assembly lines are humming as production of its ranger off-road vehicles continues nearly nonstop but as good as things are now, there are concerns that a trade war and tariffs could slow things down. because even if a company like polaris wanted to source everything from american companies, it likely can't some of the steel and aluminum parts that go into each of these has to be sourced overseas they simply aren't made here and if those parts come from china, well, the tariffs add at least another 10% to their costs. ceo scott wine says that the combination of the two tariffs and domestic price increases have made things more expensive, and he's worried about the impact on sales. o buy a reasonable amount from china, and there is a 10%, now, going to 25% january 1st, tariff on all the goods that we import from china, and that's driving up the cost of our vehicles, and ultimately, over time, as our prices go up, reducing demand. >> reporter: any of these rangers and polaris products that are sold into c