The case was found broadly in her favour, 80% of the liability was found to be McDonalds because the coffee was around 88c, and the woman recieved 3rd degree burns that took 2 years to fully treat after an initial 8 days in hospital.
She did have the coffee cup between her knees, however she was a passenger in a stationary car, and the whole cup went over her legs as she tried to take the lid off to add sugar/creamer.
The courts awarded (eventually, after a lot of faffing around) $640'000 in total, but I think the eventual total she received was a private settlement before all the appeals were done (the original punitive damages suggested by the jury was over $2million!).
It's a commonly misquoted/misattributed case, attempting to make the victim out as stupid and foolish... however there had been multiple reports of coffee being hot enough to cause severe burns (suggesting McDonalds were well aware of the issue and therefore held some liability), and it was McDonalds derisory offer of just $800 towards a medical bill of over $10'000 that really kicked things off.
It also turned out that whilst McDonalds claimed their coffee was so hot because customers wanted it to stay hot whilst they travelled, their own market research discovered the majority of customers wanted to and intended to drink their coffee straight away, which again, McDonalds quality control person conceeded, would cause severe scalding to mouth and throat at the temperatures they served it at!