We've already seen OLED displays that promise to squeeze into a rearview mirror and other parts of a vehicle, and it looks like Germany's CARO research association has now found yet another place to stick one: right in the middle of the steering wheel. As you can see above, that would effectively replace the center emblem in the steering wheel (the gauges are just for show, apparently), which the researchers say would open up a whole host of new design possibilities for auto manufacturers -- for ins