^^^ Consider power to weight.
It sure sounds to me like you've already reached the conclusion that the new M3/M4 will not see an incremental improvement in performance over the E9x M3 as its predecessors have over their respective outgoing models, or indeed as the new M5/M6 did vs. the E6x. When you factor in your demonstrably cocky attitude, it seems like a recipe for egg on face to me. Just my opinion.
2008 Interlagos Blue E93 M3 - M-DCT
2011 Salsa Red Jetta TDI Sportwagen - DSG