The tilting ramp
I said I'd post some photos of the ramp when I got the chance. I just took some today while putting the car on the trailer for the Double Regional next weekend at Bremerton Raceway Park.

Here's the default position. As you can see, that ramp is a great big drag producer.

This is what it looks like with the ramp folded up. The info on the drag reduction is farther down the page.

If I really wanted to, I could put the nose on when towing to save room in the car. But I really don't want the moron in the car behind me having that as the first thing to hit.