Back when we did the Planes, Trains & Automobiles contest I tried rendering out my entry with radiosity switched on and it looked cool but also a bit like an explosion at a disco.
So I ended up submitting a render without radiosity for the competition. A long while later I either read, or heard in a youtube video, someone mention using multi-pass with radiosity to get better results due to the blending of the multiple passes. That discussion popped into my head again today so I thought I'd try it out and ended up with this result.
For reference this is the competition entry at the same resolution (720p)