horsepower vs. other cars?

Question

i have noticed that foreign cars do not have horsepower like the cars of america.

what differs in horsepower, does the power change or the acceleration

what changes acceleration

Answer 1

US cars usually have bigger engines and some have more HP. The more power you have, then the better the performance. The gas mileage may suffer, but you will have more power to accelerate down the road.

Acceleration is a factor of torque more than HP. Also the gearing will multiply torque, so your differential will help with acceleration too.

Answer 2

That's why America is the No.1 contribute in emission gas in the world, big SUV and high horsepower car, back to your questions, horsepower gain and loose are affect by many factor like the way we drive, the gas, the weather, road surface, maintenance, etc., what changes acceleration, lighter vehicle, the way we drive, drag coe. reduce, car height, increase power in engine, etc.