But, yeah, the fridge thing wasn't a good idea and it's a good thing they kept working on the script, the DeLorean was made far more of a iconic classic than it would've been thanks to this movie and other changes helped cement the movie as a classic as well.
Plus you can't sell 1/18 models of a fridge with sound effects and lights
EDIT: TARDIS d'oh!
Imagine Back to the future with the fridge and Bill and Ted with the telephone booth. The British would go crazy!!
I hope they include Stolz's few seconds of footage.