After a bit of a search I have not been able to find any reviews of the Nikkor 500 f4 IF-ED AF-I D.
Slightly contrary to Foxy's post, this lens is billed as having a coreless motor built in. I guess that accounts for its weight relative to the AFS version. The D in this case stands for transmission of distance information for matrix metering rather than being an AF-D design which as Foxy correctly says are focussed by screw driven by a motor in the camera body.
Old Nikon Lens Brochure provided the info.
I have that stuff going back years.
Don