I could be wrong, but I don't think that would come under murder/manslaughter. Isn't there a "Death by dangerous driving" clause in the law? I'm almost sure of it. But if there wasn't, I think this would be different compared to killing someone on the spur of the moment. That being, you never chose to kill someone in this position.
This is very true...but that's my point. Each type of crime has varying degrees...
1. First Degree Murder: An intentional killing by means of poison, or by lying in wait, or by any other kind of willful, deliberate and premeditated action.
2. Second Degree Murder: Homicide committed by an individual engaged as a principal or an accomplice in the perpetration of a felony.
3. Third Degree Murder: Any other murder (e.g. when the intent was not to kill, but to harm the victim)
And the degrees of manslaughter are many...
1. Voluntary manslaughter: Occurs when the defendant may have an intent to cause death or serious injury, but the potential liability for the person is mitigated by the circumstances and/or state of mind. The common example is killing which occurred in passion, or heat of the moment killing, such as where the defendant is provoked into a loss of control by unexpectedly finding his or her spouse in the arms of another lover, or witnessing an attack against his or her child.
2. Involuntary manslaughter: Sometimes called criminally negligent homicide in the United States, gross negligence manslaughter in England and Wales or culpable homicide in Scotland, occurs where there's no intention to kill or cause serious injury, but death is due to recklessness or criminal negligence.
3. Recklessness or willful blindness: Is defined as a wanton disregard for the known dangers of a particular situation. For example, a person acts recklessly when he throws a small brick off a bridge into vehicular traffic below. No intent to kill may be found in the situation, and a resulting death would not be considered murder. However, the conduct is reckless, or criminally negligent, holding the principal guilty of involuntary manslaughter. The person is aware of the risk of injury to others, but willfully disregards it.
4. Vehicular manslaughter: A kind of misdemeanor manslaughter, which holds persons liable for any death which occurs because of criminal negligence, or a violation of traffic safety laws. A common use of the vehicular manslaughter laws involves prosecution for a death caused by driving under the influence (determined by excessive blood alcohol content levels set by individual states), although an independent infraction (such as driving with a suspended driver's license), or negligence, is usually also required.
5. Misdemeanor Manslaughter: In the United States, this is a lesser version of felony murder, and covers a person who causes the death of another while committing a misdemeanor that is, a violation of law which doesn't rise to the level of a felony. This may automatically lead to a conviction for the homicide, if the misdemeanor involved a law designed to protect human life. Many violations of safety laws are infractions, which means a person can be convicted regardless of mens rea.