Different engines under the hood...
With the low production and donor engine, shouldn't that qualify it as a (very expensive) rolling stock kit car?
This Delorean concept seems expensive and gimmicky and cashing in on the BTTF nostalgia.
Much better to go for a Cobra or GT40 kit instead or a car with a 5.7L / 6.1L Hemi engine. Much more fun - and in most cases cheaper.