Sooner or later, the best place to sell... Iso-Torque differentials and constant-velocity joints will be the aftermarket. Standard cars and hybrids generally use 120 or 130 hub bearings and constant-velocity joints apiece. An EV like the i-MiEV from Mitsubishi, however, uses only half as many. And that's not all. If the in-wheel motors now being developed as drive sources enter widespread use in the EV market, it would make differential gears and drive shafts superfluous, dropping the total number of bearings needed per vehicle down to about 20. As a result, revenue could plummet drastically in a worse-case scenario. http://www.greentechmedia.com/articles/read/in-japan-electric-cars-inspire-fear-in-component-makers/ Good thing that Torvec also has an "in-wheel motor" product.