If you make it look look like an accident is it easier for your family? Any death is tragic but suicide takes first prize, so it stands to reason a car accident would be easier to accept, family don’t have to face a reflection such as ” he was in that much pain, he went against the natural law of life and killed himself”. These single vehicle accidents late at night you hear about are mostly suicides, carefully orchestrated to look like accidents to prevent the family left behind unbearable reflections. All I would have to do is leave the road at a respectable velocity and steer into a tree or lamppost, job done in a split second, and it looks like an accident. The toxicology report would reveal traces of cannabis and Ambien in the bloodstream and this leads further credence to the hypothesis it was an accident and definitely not a suicide.