My Dad owns two 32 oz. water bottles, and because his car's cup holders can only handle 21-24 oz water bottles and cannot expand like my Mom's car's cup holders, he has had to resort to placing whichever one of his water bottles either at his feet or on the floor at the foot of the front passenger seat. I bought a 90mm (I believe) 'regular' blue water bottle 'adapter', if you will. Honestly, it works stupendously! Now, the only reason why he can't use it is when each of us or one of us has two drinks and the large adapter gets in the way. Possibly unless one of us buys a oversized drink someplace, such as a state fair, carnival or movie theater, though that is pretty rare.
I always felt bad that he had to lay them on the floor. Well, not anymore! 👍🏻 He LOVES it!