I wonder what its drag coefficient is?
GM's 2003 Ecotec Lakester streamliner, which retaining its exposed open wheels and axles, achieved a 0.21 Cd.
A lot is possible with this shape. Just note the LeMans velomobile. If Infinity didn't make this prototype have low drag, it was a wasted opportunity to see what sort of efficiency is possible with the style they chose to emulate. especially given the low frontal area attainable with such a shape.
Interesting design on Infiniti's part nonetheless.