A Rocherlea man has been sentenced to prison for two counts of causing grievous bodily harm by dangerous driving.
Adam Roy Triffett, 28, crashed on the East Tamar Highway while travelling at 160km/h around a sweeping bend in 2012.
A blood sample taken from Triffett at the time revealed methamphetamine, oxycodone and cannabis.
One passenger was thrown from the car as it rolled and came to a stop some 60 metres from where it left the highway.
Two other passengers suffered serious injuries.
Triffett was sentenced to two years' with one year non-parole.