Tesla has 2 major problems, and they have nothing to do with its cars
tesla model s supercharger station
tesla model s supercharger station

(William Wei, Business Insider)
A Tesla Supercharger station.

Consumer Reports recently pulled its recommended rating for the Tesla Model S sedan, citing reliability issues that surfaced when owners were surveyed.

That didn't change the fact CR also said the Model S P85D, an all-wheel-drive performance version of the electric four-door, broke its scale, earning 103 out of 100 points.

Owners might have issues with their Teslas, but these cars still tend to impress everyone who gets behind the wheel. At Business Insider, we've driven all the cars that Tesla has produced, from the Roadster to the Model X SUV. They've all been terrific.

Tesla doesn't really have problems with its cars — not major ones, anyway. And in any case, if something does go wrong, Tesla will fix it. Because Tesla is a young company by auto-industry standards, and working with new technologies, it wants to fix its cars, so that it can learn how to build them better.

That doesn't mean Tesla doesn't have problems. In truth, Tesla has two big ones.

1. Tesla has to maintain its own fueling network.

tesla supercharger fast charging system
tesla supercharger fast charging system

(Green Car Reports)

Tesla sells the only all-electric vehicles on the market than can deliver range that rivals gas-powered cars. But getting enough charge in the battery of a Model S to deliver 270 miles is no easy matter, especially if an owner is taking a long trip. For that, high-speed charging is imperative, unless you're in the mood to wait 12 hours for that great big Tesla battery to rejuice.

Tesla has always known this, and that's why the company developed its Supercharger network. For all practical purposes, Tesla owners can now drive their cars free from range anxiety in the US, given how extensive the Supercharger network now is.

At the moment, there are nearly 3,000 individual Superchargers worldwide and over 500 Supercharger stations with more to come. One of these things can return an 8o% charge to a Tesla battery in under one hour.

Awesome, to be sure, but think about that for a second. Tesla ownership, while tenable, doesn't really function optimally without the Superchargers. Fast charging is a must, unless you want to drive 250 miles and then park your EV overnight while it slowly recharges at a non-Supercharger charger.

So Tesla isn't just in the electric-car business; it's also in the electric-car-charging business.

It's as if General Motors, in additional to building cars, were operating gas station nationwide. Which it isn't.

According to The Motley Fool, it doesn't cost Tesla very much to operate a Supercharger station. But it does cost Tesla a decent chunk of change to build one. And if the carmaker reaches its goal of delivering 500,000 vehicles annually by 2020, it's going to need to build a lot more Supercharger stations.