The mysterious Saturn SL3 is the loch ness monster of the Saturn world. Some have witnessed proof of its existence, but only a few have seen it and I'm not aware of any photos of the vehicle. I've been told that if you can imagine a first-generation SL2 sedan with a SC2 grafted on the front-end, you'd have a good picture in your head of the SL3. Significantly, it was powered by an 2.5L 30-valve inline six-cylinder powerplant (five valves per cylinder!) that reportedly produced around 250 hp.