Lets look at it this way I’ll just call the American car the FOCUS and give you numbers not based on fact but an example. Say the Focus was around in 85 and it sold for $20k, cost to manufacture $15k, materials $7.5k, and labor $7.5k. Now the Civic for discussion sake is the exact same car but it sold for $15k, profit $5000, materials $5k, labor $5k. NOW you are the US you are afraid that imports will place Americans out of work because we can not build cars with their cost so you impose a tax $5000. So now the two identical cars cost $20,000. NOW I make the Civic and I know all things being equal Americans would rather buy American, just as if Australians would rather buy AU or Japan would Japanese cars.
So now since I know longer have the price edge what do I do to make my car more appealing? I’ll make my car faster, add a GPS, etc. It might add a little to my manufacturing cost but I’ll find a way to keep it down but my car is going to sell better. Look at Hyundai. It was a crappy car but not any more; turns a good profit. Hyundai is owned by one man, he owned the steel mill, the glass plant, everything. He has found a way to keep costs down and you get every thing the expensive cars have. This is usually done by cutting employee costs and going automated.