I'm sorry I'll have to miss this year's event. My first miss since 2013. I hope to be back, along with my brother Steve, in 2023.
Yes, the boot should be "interesting">
Any car that efficiently recharges a battery when braking should have an advantage in the boot. Of course they're in a separate class from pure fuel-burners, anyway.
The forecast now, is for partly cloudy weather during the event. That's better than snow or rain!
Weather Underground forcast
In an email discussion with Bob, he wrote something to the effect that the boot would be excluded if the weather isn't good. That really long (and kinda steep) downhill followed by a very tight hairpin would be hazardous if the surface is slippery.
I hope all Ecomodders and others involved have a great time tomorrow. I want to see reports and some photos!