1999 Audi R8R

Images courtesy and copyright James Davies and Audisportpresse
Text copyright Michael J. Fuller

By Sebring, the entire bodywork had been altered, though the general cooling architecture was still the same; front mounted water radiator with mid-mounted oil and turbo intercoolers.
Air management had been reconsidered in many of the key areas.  Of note was how the rear end was completely redesigned with the introduction of the longtail bodywork.  This allowed for a longer diffuser as the regulations stated that the bodywork had to mask the diffuser.  So in order to lengthen the diffuser the bodywork had to follow.  The air flow management out of the front wheel well was also revised.  Turbo induction was via the larger NACA duct in the top surface of the side pod (just ahead of the rear wheel); the smaller NACA duct provided air to the brake ducts.
Further testing imagery shows experimentation with turbo intakes which would eventually show up on the Le Mans car.

©Copyright 2002, Michael J. Fuller