I noticed that is very wrong because I have FREE DVDs set from the Universal Studios mailed to me directly. Nice of them. They gave it to me in 2002. Since I watched many times, I know the year is 2015 in the Part II when Doc had to bring Marty and his girlfriend to the future to rescue Marty McFly Jr. from getting himself in trouble.
There are more, look at the town plaza, the USA Today in that future.
Unfortunately, the clock tower featured in the movie has burned down a few years ago at a widespread studio fire. So, there are no clock tower to start with and no flying cars and all. As for the hoverboard, they actually invented it but they covered up because of safety reasons and some other reasons. If you listened carefully on the trilogy package of the movies, Back to the Future, the interviews with writers, director, etc. They will tell you about the hoverboard. It was more of a cover up in my opinion.
Only closest to truth was the Florida Marlins Baseball Team. We are still waiting for the Cubs to win the series!! Hahaha. Pizza Hut is still around. Hydroponic plants are the only ones getting popular. The split screen monitor Marty was talking with a guy and his boss, well, that has become true! IT IS SIMILAR TO VP!
The Delorean Motor Company filed bankruptcy and was sold to an investor in the U.S. and it has same name. You can buy a rebuilt Delorean or brand new Delorean with extra parts that was produced before John Delorean was arrested for drugs and all.