AFAIK, all modern cars have their air cleaner on the engine, but with a hose leading out to behind the grille in order to bring in fresh air. So, Studebaker had the right idea, just didn't implement it very well.
For my car I'm stuck with the factory setup, which at least, is better than the R2's air cleaner.
But, ideally, one could leave the air cleaner where it is on an R2 and do major surgery on the air cleaner and fender apron to bring in fresh air. The fresh air could be sourced from a hole in the fiberglass to the left (i.e., passenger side) of the radiator (behind the grille).
Oldsmobile implemented a fresh-air intake well in the '60s on the 442.
--Dwight