There were some really nice liveries out there, and to get the easy path I'll start with the NASCAR liveries. I picked my best and worst from RR3 and will paste them here.
The most beautiful:
.
The ugliest:
Note that it's very similar in shape to this one:
You guys who enjoy liveries, please do take a look at the pictures in these two links:
"...there are some good designers in the NASCAR game who know how to feature a sponsor's logos, create a cohesive color scheme, and even let the car look like a car."
