Hey Autogyro, just looked at your video, and 2 things jumped out at me initially.
1st, Your shape is below the plan taper in the back, this will be the biggest problem with it, also, not sure why you have so much air being jammed under the car in front with the shape you have.
2nd, Using a value of 10M for Re seems a tad high according to the "more info" stuff on the flow illustrator web site, 100-1,000 should be the Re settings.
Much discussion by others is sure to follow, hope this doesn't discourage you, keep learning.
Here's a link to your vid.
Espadon12c Re10M Flow illustrator - YouTube