v4.6 ... punched-up the shine factor on vehicles and such. FUEL uses falloff values to try to corral the fresnel/specular on certain things. It's good to ensure certain things (like tires) are always duller-looking than paint jobs and such. But, the BRDF specular on vehicles has been lackluster, so I punched up the thresholds to make them stand out more.
The "sunny trail" in this image is higlighting along the car and ground, but in the distance it's also higlighting along the mountain side. The BRDF helps cracks-n-crevices stand out a bit more.