 The engine for the LMP07 would be a brand new unit built by Zytek.Panoz wished to use a smaller engine in order to bring down the overall weight and center of gravity of the car without major sacrifices to power output.The compact 4.0 litre Zytek units, maintained by Élan, would be lighter and slightly smaller, yet would later be found to lack the power and durability of the older 6.0 litre units.