I would realy like to see D and E split by D-Mod is street capable homebuilts including all "stock 7s" and all the others. The class could have commerically available DOT 200 tires and 5" ground clearance from the front tire CL to rear tire CL. 50-50 weight dist with driver or less rear. Bring all of the Cobras and "Cobra Clones" Leave E-Mod for the slamed hombuilts running the existing rules on any tire and lets go race.
In America, a "wing" is a device that produces downforce by providing a longer airflow path under the device as compared to the air going over the device. A splitter or air dam will not work at our speeds, a wing does work. We would have to deal with tunnels in this new devision of classes. Windshields ar not worth defining and regulating in D-Mod/Street class. It's all about CG height and CoF. All of us can make "enough" HP.
Lastly, I know of no car that is 25 years old technology in all of autocross that is still competive without serious mods.
AW