A friend sent me this article which made me laugh my head off. It must be written by a gwai-lo.
HKM: Taxi drivers who can't drive a car in Hong Kong
For this guy, a murder charge won't stick. He probably never met the Taxi driver before so there wasn't any premeditating circumstances. At best it would be manslaughter. However since he wasn't in control of the car and was drunk, he can then argue he did not have the state of mind to attempt murder.
At best he will go to jail for 3-4 years.