Gov. Andrew Cuomo dropped another bombshell on the MTA Friday, proposing a revolutionary system to speed up subway cars with a “Tesla-like technology” to replace the agency’s current plan to replace the aging signal system.

The governor dropped his idea during a conference call with reporters, a day after he came up with a new method for fixing the L train tunnel that undid more than two years of planning by the MTA.

“I called Tesla because it’s outside the box,” the governor said.

He said he wanted new thinking on the signals issue because “there is a transportation industrial complex” that is holding the MTA hostage to the old technology that it can provide and not new methods.

“The answer was always what they already had,” he said. “I don’t believe you need seven, eight, 10 years to put in a new (signal) system.”

Cuomo said Tesla engineers told him it’s possible to run subways using sensors that detect when subway cars are too close, allowing more trains to be placed in service.

That’s the technology now in use by the innovative automaker for its vehicles.

The current mechanical signal system in the subways is so old that extra trains can’t be added.

Cuomo called for a study of the Tesla-like system.