The latest rumors suggest the company's electric powertrain experiment is stepping closer to a dedicated production car.

McLaren's electric powertrain experiment is reportedly stepping closer to a dedicated production car with specific performance benchmarks for further development.

The company has already confirmed its interest in electrification, though the project was initially downplayed as a testbed that would merely be used to refine hybrid systems for use across the standard lineup.

Sources now tell Autocar the initiative has already grown to plans for a dedicated all-electric production car. It is said to be under consideration for McLaren's most powerful and exclusive Ultimate Series family, requiring performance at least on par with the 675LT.

The current Super Series 'Longtail' boasts a retuned 3.8-liter twin-turbo V8 that delivers 666 horsepower and 516 pound-feet of torque, launching the lightweight supercar to 62 mph in just 2.9 seconds.

The EV is not expected to arrive until McLaren raises the bar with an all-new flagship, codenamed the P15, that will be the second Ultimate Series model to fill a void left by the sold-out P1.