AFAIK Noble can only sell rolling chassis as a kit car, you supply the drivetrain.
"The Noble® M12 will be sold in limited quantities as a component rolling chassis* only. These units come factory assembled, painted, upholstered, fully instrumented with brakes, suspension, exhaust, wheels, and tires ready to accept your drivetrain. The engine/transaxle is to be installed by the buyer or at the buyer's direction by an independent contractor. Although 1g Racing does not provide drivetrain, there are a number of race engine builders that can supply an engine/transaxle package."