$4k death traps more like. There’s no way you would ever get those approved in the US for sale.
If all cars were like that it would be fine.
* Motorcycles aren't very dangerous to bystanders.
* Approximately zero infants or toddlers are routinely transported via motorcycle.
* Motorcycles don't make up a large percentage of traffic in the U.S.
* Motorcycle deaths are more likely to leave donable organs intact, so it's a bit like the lottery, but for organs. Some people opt in to entertainment, and the rest of society benefits.
There are plenty of new cars from leading global auto manufacturers that aren’t legal for sale in the US.
But when it comes to expensive systems like crash structures, active and passive safety systems, the US requires a lot.
I remember one of the points of the failed trans-atlantic trade treaty was about handling where the stop lights should be on cars, because "safety" regulations differ.
Standards (or lack thereof) in much of Asia/Africa/S.America are on a whole different planet.
I guess my point is, not being approved for sale in the US doesn’t mean the car is shockingly different than many other cars in the rest of the world. You can find unsafe cars that would be illegal to sell in the US that say “Nissan” or “VW” on them just over the border in Mexico.
Every manufacturer builds cars to meet the specific requirements and needs for a market. In many countries, the requirements are low and the #1 priority is cheap.
Current road death trends in the US indicate that people inside cars are dying less, but people outside of them are dying more, notably cyclists and pedestrians.
But I have 0 doubt that being priced so aggressively, US and Europe would slap such a huge tariff to protect local markets, they would be very uncompetitive.