It doesn't matter whether you face charges for a non-violent misdemeanor or a violent felony; you receive the same rights under the United States Constitution. The Miranda Warning makes sure that you know you have the right to remain silent and the right to obtain counsel.
It may seem obvious to you to hear that increasing your speed on the highway increases your chances of serious or even fatal injury in an accident. After all, you probably notice that speeds decrease in school zones, heavily populated areas and roads with many cross streets, and this is a matter of safety. Therefore, it may not surprise you to know that the faster the speeds of the vehicles involved in a head-on collision, the more the chances of survival decrease for the drivers and passengers.