hey, not meaning to start anything, but ive heard that the 12L3, and the L4 are basically the same, except some of the front end geometry, as far as the brace design goes mainly, and that the chassis is wider....personally, i have the rugrat that i have not run yet....and i am hoping that turns out well...i drove the bloody knife v.3.2 i think, and it felt good, i ran against an L4, and that car looked good as well...