424 is the most performant car I have worked on with an aerodynamic efficiency of 5.5:1

PERRINN LMP1 development history

424 Aerodynamic CAD model

CAD data is open access in Onshape. No account required!

CFD results

PERRINN 424 CFD logbook

424 Aero map

424 aero maps

424 VPP aerodynamic model