For 1983 season FIA regulations required cars to have a flat bottom which must hide any part of the car when seen from below - bottom view - .
In fact, that season, several cars had little extensions of the flat bottom to hide the rear-view mirrors, however for the following season one could see how some cars had the bottom occupying the entire permitted area... even though there was nothing to hide above.
Had the rules changed or did the engineers simply take advantage of the entire area allowed for the bottom when they saw that they could obtain some aerodynamic gain?
What do the current regulations say about this?
Is the presence of the flat bottom allowed even if there is nothing above to justify it?
Edited by WHITE, 01 October 2023 - 12:55.