why should it be a v6, v8, v10 etc. Why not simpl;y a power unit/engine with x power output and x displacement and let variety be the spice of F1 life. SOme of the best GPs were in the 70's when different manufactures had different engine configs. i.e. Ferrari V12's vs Cosworth V8's. Both were 3 litres, the Fezzas were more powerful, but heavier, the Cozzies were more driveable and lighter. The V12 were faster but the v8's got into and out of corners better and the racing was simply better