2003-2004 Lister Storm LMP

Images copyright and courtesy Bob Chapman @ Autosport Image and David Legangneux
Text copyright Michael J. Fuller

The large intakes at the front of the Lister scoop all the air for the engine coolers, brakes, and engine intakes.  Looking into the intake you can see the front suspension.  Andy Thorby adds some additional explanation to the purpose of the unusual fender shape:

"The front fenders were 'prow' shaped for two reasons. Firstly to reduce the lift by encouraging the air to flow round the sides rather than over the top, and secondly to improve the efficiency of the dive planes.  Dive planes are usually very efficient, but need the highest velocity flow possible. The air accelerating around the fenders is considerably faster than the speed of the car. The cooling intakes are right at the front because that is where the best flow is, because I wanted the maximum length over which to shape the radiator duct to optimize the cooling, and because I wanted to simplify the front brake ducting by using an upright-mounted scoop, like a single-seater"

The Lister's upright and brake duct.  Note the single-seater inspired brake drum situated on the upright.  Additionally notice the pullrod operated suspension and the spring/dampner mounted on the bottom of the tub. 
The shaping of the trailing edge of the wheel well helps assist the high pressure air to evacuate out the side of the car instead of moving to the underbody.  The large dive planes and the louvers over the front wheel arch are used to balance the chassis' aero. load front to rear.
The engine intake plenum box.  The elimination of an intake scoop helped reduce frontal area.  Thorby explains that there is little gain in horsepower from RAM effect when running a mandated intake restrictor so any benefits from a scoop in the airflow are negated.  The idea being instead to reduce the car's frontal area with the elimination of the airbox.
The Storm appeared in 2004 with a heavily revised engine induction system.  The roll-over hoop was combined with a proper airbox.  Reports were that the RAM induction airbox showed an immediate gain on the order of 50+ horsepower (for around 570 total).
By Le Mans '04 the Lister ran a modified version of their new airbox necessitated by the ACO tech inspectors.  Regulations state that the highest point of the car is the roll over hoop.  With the combined airbox/roll over hoop it could be argued that the airbox itself was the highest point on the car.  In order to comply with the regulations Lister made the necessary changes to the airbox by reducing the height of it relative to the roll over hoop.

©Copyright 2004, Michael J. Fuller