Looks like Sprint and agency Goodby Silverstein & Partners are going to run with the light-tracing gimmick for a little while longer. In its latest incarnation, light is used to add character to a grim cast of NASCAR vehicles as they wage war on the battlefield of the racetrack.
The music seems to slow the pacing and dilute the drama a bit, but there are some great details to be enjoyed in the animation, completed in part by the wunderkinds at Three Legged Legs. (The end tag was apparently executed by Buck.)
Technical details can be found on The Mill’s site, who handled the compositing. (Thanks, Igor!)