I like it - the only possible thing I'd look at is that there isn't a great deal of contrast in tones between the colours, so the flash doesn't stand out quite as much as it could.
With that red at the rear (which is quite orangey) I'd be thinking more along the lines of a yellow flash with a white outline, instead of orange with yellow. It would just contrast and stand out a lot more, I think.
You could move the rear "M&M" forward so it doesn't stray onto the wheel arch, as it looks a bit stretched.
But it's a nice design, the above is merely personal preference.
I've you looking for logo's you can try http://www.brandsoftheworld.com to download EPS or what I do when a logo is not there, do a Google Search for a PDF (press release) of the company I want the logo from. Sometimes in the PDF there's a logo in it. For skinning, you want a transparant vector file: EPS or PDF.