Although I give the Group B cars a lot of respect, they actually do have a lot in common with "rice". They started out as small coupes and hatchbacks with engines in the 2.0L range, and had stuff slapped all over them to turn them into monstrous race cars (monstrous in performance and appearance). Lack of technology in certain areas, i.e. suspension and brakes, was desperately compensated for with enormous wings, which were a faster, cheaper and easier way of helping performance--the same rationale most "ricers" use when putting body kits and so forth on their cars, cheap and simple improvement to performance of an initially small and cheap car.
The difference, of course, is that the Group B engineers knew what they were doing, and all the hideous things they did to the cars actually worked, whereas few if any "ricers" have any technical knowledge and do as much harm as good most of the time. In addition are the usual "showoff" mods like loud BOVs that cheaply simulate characteristics of high-performance cars (Group B cars had loud BOVs too--but it wasn't deliberate, just a consequence of the enormous boost pressures).
Now, neon and stuff is just aesthetic, and not even "ricers" will claim it has any effect on performance. Heck, I think glowing lights are cool too, and if I was making a car just to be pretty I might consider it, although I'll pass on the vinyl decals. The problem most "ricers" have is mixing aesthetics with performance (and a large dose of poor taste) and ending up with, well, what this thread is about.