Tesla may reveal the release date of the Model 3 this Sunday, according to a Twitter post by CEO Elon Musk.

Late last night, Musk tweeted about more news being revealed on Sunday.

Production is expected to start in late July. Musk has said that a production version will be shown off during that month.

Deliveries will potentially begin before the end of the year, but Tesla has held back on being specific.

In mid-June, Tesla updated its website to reach out to those with pre-orders offering test drives beginning late this year. That implies the late 2017 delivery launch will be met.

Douglas Bailey, who identifies himself a business intelligence analyst, spoke for many Tesla fans and other electric car lovers who’ve been waiting impatiently for the reveal in his tweet.

“News on Sunday” means that Musk could reveal any one of several possible news items, including the date production starts, more specs for the Model 3, or a special launch event planned for late this year.

Earlier this month, Musk told shareholders at their annual meeting that production will definitely start in July. Customers can customize their order, but only for color option chosen andwheel size. More options will be revealed as production ramps up, he said.

Last month, a product sheet was leaked onto the Model 3 Owners Club forum that compared the Model 3’s performance parameters and features with those of the Model S.

It will go from 0-60 mph in 5.6 seconds, compared to 5.0 seconds for the Model S 75.

The Model 3 won’t be much shorter than the Model S, with the Model 3 measuring in at 184.8 inches long while the Model S is 196 inches long.

That means the Model S will be just a foot longer than the Model 3 – which further raises the question of whether the Model 3 will be a smaller version of the Model S.

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It won’t have the cargo volume of the larger luxury sedan. The Model S has more than twice the space at 30 cubic feet of cargo volume, versus 14 cubic feet for the Model 3, according to the leaked specs.

Interest will be high on Sunday, especially for the more than 400,000 buyers who put down pre-orders on the Model 3.