Yes there is ...
We've now run the prototype both indoors at Caldicot and and outdoors on astro/grass at Tiverton.
Several Durango drivers have had a good look over the new body and given it their approval.
We have tried the front body wing that will come with the kit. I can't say there was a noticeable difference indoors, poss because it's a relatively small hall and the speeds are not great, but on the fast bank at Tivvy it did help stabilize the car and make it a little easier to drive.
So with the thumbs up, the prototype mould has now been finalized and is being cast for vac-forming this week.
It'll be a couple more weeks until the new body is in the shop but we're aiming to have them available early July.