The real percentage of suicides among car accidents is not reliably known; studies by suicide researchers tell that "vehicular fatalities that are suicides vary from 1.6% to 5%".
」 透過车祸來自殺的真正比例不明；一些有关自杀的研究表明：「因自殺意圖而起的车祸的比例介乎1.6-5％之間。