Tesla's big selling point for the Model 3 is its affordability, with a starting price of $35,000 before tax incentives. But for customers who want the full Tesla experience, however, the final price will most likely surpass $40,000.

A Tesla Model 3 sedan, its first car aimed at the mass market, is displayed during its launch in Hawthorne, California, March 31, 2016. REUTERS/Joe White/File Photo

It's unclear whether customers who buy the Tesla Model 3 will be eligible for the full $7,500 federal tax incentive — that credit applies only to the first 200,000 cars a manufacturer sells domestically.

Tesla globally sold about 80,000 vehicles in 2016 and about 50,000 vehicles in 2015. Factoring cars sold since 2008, Tesla will be cutting it close to 200,000 vehicles by the time deliveries begin at the end of the year.

But the credit doesn't disappear the second an automaker hits 200,000 vehicles. Instead, the credit would first fall by 50%, CNN reported.

On its website, Tesla doesn't make any guarantees about the federal tax incentive.

"We are committed to providing you with the most current information about incentives at the time of purchase. We'll do the same when it's time for confirming your Model 3 order," the website says.

Tesla's new Autopilot system will also cost at least $7,100, but more on that later.