Tesla Motors is among the most tight-lipped car companies, but luckily for fans and prying journalists, it's also one of the smallest.

That means CEO Elon Musk and CTO J.B. Straubel can hold town hall-like events with the company's small customer base, answering questions and providing a preview of things to come.

At one session in Oslo last week, the pair revealed more details of the upcoming Model X crossover, as well as future upgrades to the Model S and a few tidbits regarding the entry-level Model E sedan.

Tesla recently confirmed that the Model X will be all-wheel drive only, with a separate electric motor powering the front wheels. It will have the same wheelbase as the Model S and will be just as wide, while the crossover's length will be "within 5 centimeters (about 2 inches)" of the sedan's.

However, the coolest part of the Model X isn't its utilitarian body style, it's its vertically-hinged "falcon doors." Musk promised that these will make it to the production model, which should hit showrooms by next year.

Around that time, Tesla will also offer all-wheel drive as an option on the Model S, which customers in snowy climates will probably appreciate. The sedan is also due for a software update, which will include a hill-hold function, the ability to set ride height manually over a wider speed range, and other changes.

Finally, Musk and Straubel said they anticipate much lower battery costs for the upcoming Model E sedan, which allow it to hit its BMW 3 Series-like base price target of $30,000 to $40,000. They expect Model E batteries to cost 30 to 40 percent less per kilowatt-hour than Model S batteries.

For the full details of Musk's European tour, head over to Green Car Reports.


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