After the New York financial markets close this afternoon, Tesla Motors will release its first-quarter financial results and its quarterly letter to shareholders.

The company announced last month, just after the close of the quarter, that it had delivered 10,030 Model S electric cars.

DON'T MISS: Tesla Motors Releases Quarterly Sales: 10,030 Cars Sold Globally Jan-Mar (Apr 3)

At that time, the company's "guidance" (or informed projection) for its full-year deliveries in 2015 was 55,000 vehicles.

That number represents a two-thirds increase on the 33,000 Model S cars it delivered for all of 2014.

Tesla CEO Elon Musk, demonstrating the Model X third-row seat and falcon doors

Tesla CEO Elon Musk, demonstrating the Model X third-row seat and falcon doors

The increase for 2015 includes not only the latest P85D and 70D all-wheel-drive versions of the Model S, but also some unknown quantity of sales of its upcoming Model X.

That electric SUV is scheduled to start deliveries in the second half of the year, though Tesla has not yet shown its final production version to the public.

ALSO SEE: Why Tesla Model X Electric SUV Is Late: Range, Towing, 'Falcon Doors'

But as a blog post in The Wall Street Journal on Monday notes, it may be that Tesla CEO Elon Musk has already walked back that 2015 number--at least incrementally.

Last week, he told Japanese news agency Nikkei that, "this year, maybe, we’ll be a little bit above 50,000 cars."

Tesla Model X testing on California road, Mar 2015 [Twitter: ModelXnews]

Tesla Model X testing on California road, Mar 2015 [Twitter: ModelXnews]

The proof will come in the documents Tesla releases later today, but one possibility is that Musk was being--as the Journal put it--"uncharacteristically modest."

Otherwise, it's at least possible that the official guidance for 2015 deliveries will be cut.

MORE: Tesla Model X Caught On Video In Acceleration, Cornering Tests

Before Model X deliveries were delayed last year from the first half of 2015 to the second half, Tesla had expected to sell deliver 60,000 electric cars in 2015.

Either way, we'll know how the companies views the balance of the year in a few hours.

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