The Automobile Club de l'Ouest has revealed details of the 2016 GTE regulations.
The new plans are set to govern Le Mans, WEC, TUSC and both the Asian and European Le Mans Series.
The new regulations will be applicable from 1st January 2016.
The ACO and FIA were clear in their joint objectives of setting GTE as the premier class of GT racing, while simultaneously enhancing performance compared to the GT3 category. Costs will also come down with an increased homologation period of three years.
The rules makers expressed a desire for the GTE cars fit into a rigid performance gap. The aim of the rules makers has been to allow simpler and less expensive implementation of the technical regulations in the two GTE classes.
"LMGTE must more than ever be the premium category of GT racing," said ACO president Pierre Fillon.
"These are high performance race cars which allow top professionals and the best gentlemen drivers to show what they can behind the wheel. LMGTE is and will be the most prestigious setting for the most beautiful GTs."
Aerodynamic development is set to be allowed in a carefully contained space at the front and rear of the cars. The bodywork section close to the wheels, the front splitter section and the rear diffuser will all be allowed – subject to the cars remaining within the defined performance window.
A new extraction hatch is set to be made mandatory, allowing safety crews to remove the driver in order to facilitate the work carried out by medical teams.
Existing models are set to race on in the WEC in 2016 alongside any new models, one of which will be announced by Ford at Le Mans tomorrow afternoon. GTE Am will not see any new cars until 2017. Both categories will phase out current GTE models by the start of the 2017 season.