If we used 12 engines with 400volts - 1440hp and with 700 volts 2652hp,
we must also take into consideration, both with 6 engine torque entire system exceeds 2000nm,
with 12 the maximum engine torque 4320 Nm, for so the transmission should hold at least 40% more and
I don't know a transmission that hold all that torque,
we must also consider the transmission ratio to achieve 350km / h,
the maximum Rpms of the electric motor is 7500.
Then need a several automatic transmission ratios that support all
the maximum drive torque or a multiplier similar to that used by Toyota
in hybrids would also be desirable at least 3 types of programming engines 2 motor city,
Eco mode, Normal mode 4 engines, road,
Sport mode 6 engines work and can be used as motors or generators which are not used at that time.