You can pre-order a Model X right now, but the Model 3 isn't expected to arrive until 2017.

These two Teslas are all anyone has been talking about lately — especially Wall Street analysts who want to figure out which way Tesla's extremely volatile stock price is headed.

But Tesla is working on another car that nobody ever mentions.

It's going to be such a fast and sexy car that CEO Elon Musk has reserved a special category of speed for it: "Maximum Plaid." 

Like "Ludicrous Mode" — Tesla's current top-speed technology — the label is nicked from Mel Brooks' "Star Wars" parody, "Space Balls."

Ludicrous Mode already enables Tesla's Model S P90D sedan to serve up the kind of acceleration we normally enjoy in Ferraris and Lamborghinis. It weakens the knees to imagine what "Maximum Plaid" will feel like.