Car buyers have been rushing to US showrooms to lock in deals before potential price hikes.Global auto manufacturers have yet to be given a reprieve from a 25 percent tariff on vehicles assembled outside of the United States.Immediate impacts have been observed, like Audi holding foreign-made vehicles at port and Jaguar Land Rover suspending all shipments to the US.Car shoppers who were hesitant about purchasing a new car are now rushing to dealerships.