It's a really funny game! I love the ragdoll physics, and i love trying to get combos by hopping between cars!
I'd love to see this made into a full game someday - perhaps with a more complex AI for cars (so some cars swerve to avoid you, which can be used to cause more accidents), plus more maps (I'm just imagining Sal getting hit off a busy highway interchange and landing in another lane of traffic below the bridge.
I loved the music, the classical piano + goofy mechanics gave me real Untitled Goose Game energy, which is great. It's a bit of a shame about the audio glitches in WebGL.