I was wondering what is the exact word of a vehicle usage statistics? For example, what should I call my car's total traversed distance?
The total of traversed kilometers is called the mileage of the car.
The liters of fuel used per 100 km can be called (fuel) consumption or fuel economy.
The height, width and length are the dimensions of the car.
I'm not aware of other specific words, but horsepower, weight, etc. all fall under the (technical) specifications of the car.