Originally Posted by MattP725

I'm willing to bet that it was tar or something of that nature... as someone mentioned there is almost no way that the car would be leaking unless the splash guard was removed or it was an EXTREMELY large amount of fluid (enough to render the car a 30 thousand dollar paperweight).

You kicked up something on the splashguard and it dripped off on the ground when you parked. The only other thing would be if it was past the engine, like a bag on the exhaust as was also mentioned. I'd keep my eye on things like the oil level but I wouldn't really worry too much. Only other fluid that would look like that color would probably be the dif fluid which is WAY behind the engine.