Well figure I might get a few more suggestions, I saw several different types of light modifiers recently but didn't get a chance to ask about them. I have the Gary Fong product but honestly for me it helps but not enough, I have not tried it that much either. I see people put them together in several different ways and maybe I have not found the best one yet, to spread the light out the most. I should probably watch a video but I am not counting on this product to remedy the problem.
Here is the situation, I need something portable so the 36" soft boxes won't really cut it for me. I am taking pictures at car shows, I used to be outdoors but lately they asked me for indoor shows. If it works out I get a media pass and there is no problem but this lastest show, I wasn't able to make the media time frame and had to shoot with the general public all over the place. The result is the following, I underexposed this so the background is not blasting everything else out and obviously no flash:

I needed a wide angle lens to get up close so nobody was in the way but using a flash I only get like a part of the car and everything else is just too dark. I can crank the ISO up but would prefer to be able to illuminate the car and not have the background lights be so bright (and distracting). I hopefully will not get caught in the general public times anymore but figure I need to be prepaired incase I do. On another note, setting up 2 or 3 flashes really won't be an option either, last thing I need is someone to step on it or kick it.
For flashes I have the following: SB-900, SB-700, and an SB-400