Both have a sort-of futuristic look, in a non-conventional way. Both (as cars) appeal to a tiny niche of (non overlapping) users.
Most of the current appeal of a Delorean, indeed probably the only reason it even still exists, is because of BTTF. It's cool in a weird way not a practical way. It's all styling (and doors) - as a car it's, well, not great.
Cybertruck is also really all about the styling. As a truck it's not special. It may turn out to be produced in small numbers. It'll likely be desirable as a collectors piece in the future.
Obviously with styling this distinctive it's not going to appeal to everyone. Most likely think it's ugly.
So comparing it to a Delorean I think is fair (although obviously their heritage - one company bombed , the other is changing the world - is obviously not the comparison being made.
I am kind of joking, but not really. I find the comparison offensive to Deloreans because I like Deloreans but really dislike the look of the cybertruck.
Others' differing opinions are completely valid too, it's merely a matter of personal taste, IMHO.
It will be interesting to see how collector vehicles evolve
There are still Delorean owners and meetups, because 80s cars can be maintained and operated pretty much as they were back then
In 40 years will a cybertruck even have a cloud service to connect to for all the features it is sold for today? Will there even be a compatible cell network for its radios?
I have computers and peripherals way younger than a delorean and they are effectively paperweights because there is nothing to connect them to anymore. Is that the future of these cars if we can’t update them, or point them to new endpoints when Tesla ends maintenance of their cloud?