Well thats what they have been doing with them for years, and you can always tell, well with cabs that are painted colors other then white, when the doors open, and there is a white door jams on a yellow car, or like here , green cabs with white door jams
There are a lot of new cabs being made, I know Nissan has made a cab, the ford tranist is being made as a cab, plus all the other ones
Plus you have this one, be warned, its ugly , not sure if this going to happen
http://www.hummerguy...oduce-taxi-cabs
Nissan cab
http://www.google.com/imgres?q=nissan+cab&um=1&hl=en&biw=1024&bih=588&tbm=isch&tbnid=7B1VI0gs8q8CvM:&imgrefurl=http://www.engadget.com/2012/04/04/nissan-nv200-taxi-of-tomorrow-hands-on-video/&docid=flEgNrqjSiKv5M&imgurl=http://www.blogcdn.com/www.engadget.com/media/2012/04/nissan-cab-2012-04-04-600-23.jpg&w=600&h=399&ei=97otUNCoMMK6yAH_9YCoBQ&zoom=1&iact=hc&vpx=83&vpy=149&dur=1478&hovh=183&hovw=275&tx=105&ty=111&sig=104437887934354558667&page=1&tbnh=122&tbnw=161&start=0&ndsp=15&ved=1t:429,r:0,s:0,i:72