Citroen had a similar dilemma back in the 1950s, when they designed the DS: due to the pointy nose needed to get good aerodynamics, the scoop for the radiator could not be made big enough.
So they placed the narrow scoop at the extreme front end, practically in the steel bumper, where the air pressure at speed is highest. The boat-prow shape of the nose dictated a slanted steel undertray from the bumper to the front wheels (which funneled the air below front axle... good ole static pressure again).
Air entered the engine bay through a narrow scoop, then expanded in a funnel sealed with rubber-fabric to the front of the radiator, so all air was forced through the core, and exited the engine bay through wheel wells, aided by the rotation of the wheels and inboard brake rotors.
Side note: the engine was fully behind the front axle, almost buried under the dashboard. This helps weight distribution a lot and remained for all aerodynamic Citroens, through CX, GS, XM, even the modern-day C6.
