Running a V8 will have nothing to do with it, especially if you open up one of the exit roads as a "chicane" to give it a road course flavour.  Nothing with a v8 has won the 24 Hours of LeMons... It's usually gutted BMW 3-series and Miatas and stuff like that.  If it's a true Endurance race, it's won by number of laps completed, not who crosses the line first.  Reliability is everything.

these are all good ideas i agree about no v-8s now it makes no sense to have small car with big v-6s and 4s no awd with turbos if u have a turbo 2wd only must be a fwd no mustangs (we should present this to paul)

My concerns are it would have to remain cheap and safety is of top prority. That being said the cars would need to be light and small. Configure the coarse to keep the speeds down in the corners. This should be about abilty agility and perserveriance and some reliability, not about power.
Might attract some new warm bodies to the enduro ranks and hey it would give the Chaos guys the venue to show off some of thier talents as well, or maybe they might be chicken 😮

thats what i like to hear and my k-car wouldn't be a bad idea then lol  SAFTEY First ur right light and slowish

Go down the frontstretch, hard left into the infield, go the wrong way around the JRL course, left onto the backstretch, throw a chicane between turn 4 and the finish line. Put some jersey barriers up so people can park in the dirt in 3 and 4 and so nobody actually hits the tech shed.  ;D