This is my version of the ubiquitous Black Cab, as seen most famously in London, and other UK and international towns and cities.
I've also included instructions for you to build your own. Modern cabs often come in advertising paintjobs so you can easily modify the design to new colours. It doesn't fit a minifig although Samarth Moray has designed a mod that lets it fit one at the sacrifice of a little bit of detail. Instructions for it are here.
What details would THOSE be? You call not having a studdy cab roof + 1 plate increase in height a loss of detail? Bah! The 5 stars are for that render in the main thumb... you finally got me. I thought it was an 'in the brick' model. Rating the design itself you get 2 smilies, and I get the remaining three for sticking a fig in there ;)