Is the one who dies in a car accident a martyr (shaheed)?

It is proven in a number of hadeeths that the Prophet
(blessings and peace of Allah be upon him) said that the one who dies by
drowning, or because of the plague or a stomach disease (diarrhoea) is a
martyr. So the one who dies of the plague is a martyr, the one who dies of
a stomach disease is a martyr, the one who drowns is a martyr, the one who
is crushed by a falling wall is a martyr, the one who is killed for the
sake of Allah is a martyr, the one who dies for the sake of Allah is a
martyr, and there are a number of others who are martyrs. 

This is by the grace of Allah, so that this ummah will have
an advantage in terms of great reward, but the best of them are those who
are martyred for the sake of Allah, who are killed for the sake of Allah.
They are the best, and they are not to be washed (ghusl), and the funeral
prayer is not to be offered for them, for they are alive with their Lord and
given provision. Martyrs other than those who were martyred for the sake of
Allah, such as those who died of a stomach disease or the plague, or those
who were killed by falling walls or drowned, are to be washed and the
funeral prayer is to be offered for them. Included with them are those who
die in vehicle rollovers and car crashes; they are likened to the one who is
crushed beneath a falling wall, and there is the hope that they will have
the status of martyrdom, but they are to be washed and the funeral prayer is
to offered for them, as is done for those who die of stomach diseases or
drowning. End quote. 

Shaykh ‘Abd al-‘Azeez ibn Baaz (may Allah have mercy on him) 

Fataawa Noor ‘ala al-Darb,
3/1426 

For more information please see the answer to question no.
45669.

And Allah knows best.