> I thought if you put a single strip of LED's down the side of the vehicle,
> then sequence the leds' with text/whatever as the vehicles' moving, so
> you get banner advertising. Of course, the good part is people see the
> text when they're not really looking, ie side vision. If you look
directly, it
> simply looks like they're all lit, and flashing.
> You can synchro this to the speed of the vehicle to keep the font
> proportional.

WheelFX tried this a couple of years ago in the CART series. I didn't
think much of it actually, as the viewing angle is quite narrow and you
need to be just about perpendicular to the car to see it. I haven't seen
it in action since 2001

http://www.eurovestech.co.uk/portfolio/adflash.htm

"The technology has since been proven to enable sponsor's names
and logos to light up on the wheels of cars as they race the Formula 1
and CART circuits"

but I'm still skeptical about it being easily visible on those cars. Even
with the many cameras at CART events it was not common to see the
"Toyota" in Fittipaldi's wheels. On the outside of the wheel would be
better, not tucked away inside near the brake discs, but then you have
a problem when changing wheels at pit stops

http://home.clear.net.nz/pages/joecolquitt/wheelfx.html

I definitely haven't seen it in F1 ever, seen every race since 2001, and
happen to be watching Monaco right this very minute, no sign of it

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.