Cutting costs? Being competitive is ALWAYS expensive! If you're gonna cry about having to replace FET servos, you got issues! But less maintanence is good!
Weight distribution issues? Chassis mods(shifting/reallocate components), New chassis upgrades, Saddle pack chassis, 4 cell side by side sitting sideways like a 12th scale or centerline a la Losi! Ofcourse you can opt with less beefier chassis and other parts, new cars, new everything, back to cost issues?
Somehow I feel going slower makes racing more difficult! Anyone ever tried racing low end spec stuff? ie. silver can motors or trinity street spec? Its slower yes, but you also have to drive more cautiously! Very hard to make up lost time!
Revive(not that it was ever popular) pan-sedans! Assoc 10L3T, CRC Pantoura, Corally CCT! Adaptors for touring rubbers if you want; tamiya is making a F103GT!