Heard this one on the low-down. Nissan is kicking around the idea of building a Miata fighter. We are sure the Esflow Concept that Nissan featured at the 2011 Geneva Motor Show has added fuel to the fire and speculation is flying. Will it be based on a Sentra platform? Or a larger Z-car platform which the Esflows seems to be based? Gasoline or electric? We are leaning toward the smaller platform; the Z is already available as a drop top, but would welcome Nissan stuffing the 370Z’s V6 under the hood of the new roadster.