A NOVEL SUGGESTION FOR THE G.P. FORMULA.

SIR,—Like many people, the problem of the limitation to be placed on future racing cars has interested me. My suggestion is a mechanical one. Briefly, I suggest that the differential ratio, with a certain specified sized tyre, should be fixed, say at to I. (No overdrives or what-not allowed in the gear boxes). Would-be builders of large engines would find their power negatived by the calamitous possibility of over-revving, etc. I am, yours, etc.,

J. C. DAVIS.

Venblis.