We do know some of the things that went on in that cab. A woman was so drunk, she peed in her clothes. She was taken far from her stated destination. She was three times over the legal limit and passed out within minutes. Neither she nor the cab driver had ever met before and the cab driver required a translator in court, so has only a basic understanding of English. As much of their brief time together would be spent driving, I cannot think that any consent was given. I'd be more given to believe that the cab driver assaulted her in revenge for her soiling his cab.

As to your own love life, I have no comment beyond noting that you likely have agreed to sex before drinking as she is your girlfriend. But be forewarned she can withdraw consent at any time and once she's said NO, you cannot claim consent. And once she's incapacitated, you cannot do anything not agreed upon before, such as adding a partner or other kinky stuff.