We've all read about the 0 to 60 and 1/4 mile times for the Hellcat with the 707hp RED key. Has anyone read about performance times using the BLACK key? At 500hp, the car still has a little more power than the 6.4 / 392 cars (R/T scat pack or SRT). Would a "black key" Hellcat be quicker than the others? And just for fun, I wonder what the performance times would be in valet mode (300hp).