Speed the ride is one of my favorite launched rides ever! I'd say the track is not as psychotic as Batman and Robin or Mr. Freeze, but it has 3 boosters, one out of the station, one again after the loop and that same one again going backwards.
You basically launch out of the station, and hit a majorly overbanked turn that dives into a tunnel. (which happens to go under the sidewalk along the strip) You then go through a perfectly circular loop (the kind that gives you extra g's), hit another booster, then you take another quick turn and fly up a tower, which is totally vertical. The tower is supposedly 220 feet or so, but the train doesn't quite make it to the top (like all of these rides) and you then do the whole thing backwards, with that booster after the loop now boosting you into the loop. Oh, this ride supposedly goes around 76 mph, so of course it dries your contacts and can jerk tears out of you. I think it is the best ride in Vegas by far, I sort of like the Manhattan Express (at New York New York) but I think loses all steam too quickly, and becomes totally lame at the end (they should ease up on the brakes halfway through, this would make the final bunny hops and hills alot more intense)