Great pictures
Here in NJ, several different bars have "rented" just such a vehicle to draw crowds at night. I've personally seen this twice, once in Morristown on some holiday (New Year's ?, St. Patrick's Day?) a year or two ago. All the doors/hatchback are left open and you can look at the interior. I don't know if it is 100% authentic to film, but it looked like the interior from the film.
The DeLorean was pumpin' out 80's synthpop (fine by me), and had some light effects that I don't remember seeing in the film.