I don't think there is such a thing as an Illegal Immigrants now Woof , once they step ashore here they very really get deported and if you have a criminal record you seem to be in a even better position to stay
//If convicted of dangerous driving he will probably be disqualified.//
He will definitely be disqualified. The offence carries a mandatory disqualification of twelve months minimum, followed by an extended re-test before being allowed to drive as a qualified driver again.
In the mid 60s there were 8000 road deaths annually, in 2013 there were 1700. I think that speaks volumes for the advances (by legislation & otherwise) in road safety.
I remember back in the mid-70's, we got 14 people into a Ford estate car on the way back from a football match; 13 from the football team plus the driver. Yes, we'd won the match!