Xero were once running 4 Radical Sr4s, and required liveries for 3 of them.
The first was for a Hummer Dealership owner, and was required to look like a Hummer. How on earth do you make a Radical look like a Hummer, well give it a Hummer grill! This was basically a Chrome strip, with anthracite ovals laid over the top, and the HUMMER letters in between.
Then the trademark Hummer ‘H’ was laid out in lines running up the front (similar to the owners helmet), before dispersing out of the side pods in a random fashion.
The next one was mainly sponsor logos, surrounded by a simple flame. Ironically this car had burst into flames in Valencia, following a burst oil pipe.
And finally an SR3, with the company logo, as a track day car.