Radio Flyer's Tesla for Kids and the purported Tesla Model H mobile home. One of these is not real. (Illustration, images from Radio Flyer and Inhabitat)

It can be confusing keeping up with Tesla.

The celebrated automaker led by the maverick Elon Musk unveiled in September a new electric Model X SUV with stylish gull-wing doors.

That was followed by an ambitious Autopilot mode, transforming Teslas into the closest thing to a driverless car that's available to the public.

And then came the Summon feature, which allowed a Tesla owner to click a button and call the vehicle to roll out from a garage or parking spot.

So it may not be surprising to hear there's now a kid-sized version of Tesla's popular sedan. Or that there's a Tesla mobile home, the Model H.

Except one of these is a hoax.

The $499 toy is a scaled-down version of the Tesla Model S sedan. It is made by Radio Flyer, the manufacturer best known for its iconic red wagons. The single-rider car is intended for children ages 3-8. It's even powered by a lithium-ion battery, just like a real Tesla. You can pre-order one now, customize its color and even its license plate, with shipping expected in May.

At the same time, news of Tesla's Model H is making the rounds on social networks. On Twitter and Facebook, people are excited about a Tesla mobile home that "comfortably houses" a family of four and costs just $120,000.

One clue that the Model H might not be real is that price. The Model S sedan starts at about $70,000 and quickly can reach $132,000.

There are several versions of the Model H story, including one from a site called Off Grid Quest and another from the site Tech Drive. And then there's a story on the site Inhabitat. The stories first came out last spring, but have recently found new life online. The stories offer no hints they are fiction beyond the outlandish details.

A Tesla spokesperson confirmed the Model H is not real.

Yet, a Tesla mobile home doesn't sound too far-fetched.

After all, Tesla plans to unveil in March a new Model 3 sedan, with a price tag expected to be near $35,000 after government incentives.

And there have been rumors of a Model Y, supposedly the crossover vehicle hinted at in a Tesla executive's slide presentation last year.

Ever since Tesla was founded in 2003, it has faced doubts about its lofty ambitions.

So when it comes to a company like Tesla, it's probably best to say the Model H is not real -- at least, not yet.