#55 is really interesting but the wings are not really consistent with my brand. I am looking for road warrior 1950's. Almost a hood ornament or tail fins on the back. I don't know how you could incorporate the design but I really like the font and the black dot for the i.
#51 is cool. In fact it is my wife's favorite but in my opinion it needs a red area in the lower right of the speedometer to show the "overdrive" and maybe notches to distinguish that it is a speedometer and not a compass. I would also prefer the star in the center to be gone or reduced a great deal. The "Innovation" font is a bit difficult to read as well.
Thanks for all you hard work and awesome creativity!