My final project in school in a sequence of a Mini Cooper. The car is formed from fluid, leaves a trail, and then splashes apart at the end of the sequence. I approached the problem many ways, but relied on some scripting to get the final result. An emitter generates particles in a fixed location in front of the car, and upon collision with the car the particles are transferred to another set of particles. Only the second set of particles are visible in the renders so the fluid appears to come from the surface of the car instead of out in front of the car. See the video below in 720P as a Quicktime file.