Tesla already has $40 million in advanced orders for the Model X crossover.

Tesla's Model X electric crossover isn't even on the market yet and it's already an instant hit. Following the Model X's official unveiling last week, Tesla says it has already taken $40 million in advanced sales of the plug-in CUV.

"On Thursday evening, the night of the reveal, traffic to teslamotors.com increased 2,800 percent," Tesla said. "Two-thirds of all visitors were new to the website."

Moreover, the Model X surged to become the third-most searched term on Google, indicating a high-level of interest in the zero-emissions people hauler.

Based on an extended version of the Model S' platform, Tesla says the Model X has about the same footprint as an Audi Q7 but offers 40 percent more interior volume. The Model X's third-row seat is also easier to access than the one in the Q7, thanks to "falcon wing" doors that open up and out.

Model X buyers will have the option of two battery packs - a 60 kWh unit or a longer-range 85 kWh battery. A performance model will also be on tap and will be capable of accelerating from 0-60 in just 4.4 seconds.

The 60 KWh version of the Model X will list from $57,000 while the 300-mile-range 85 kWh model will carry a starting price of $90,000.

The added Model X interest also drove sales of Tesla's Model S sedan. The Palo Alto, California-based automaker says reservations for the Model S increased 30 percent following the Model X's debut.