The Model Y, Tesla's more affordable SUV based on the Model 3 platform, will be unveiled at a March 14 event in Los Angeles, Elon Musk announced on Twitter on Sunday.

After introducing the Model S in 2012, Tesla reworked the vehicle into an SUV form factor and sold it as the Model X starting in 2015. Tesla is taking the same basic approach with the Model Y: it will look a lot like a Model 3, but will have a larger body and roomier interior.

"Model Y, being an SUV, is about 10% bigger than Model 3, so will cost about 10% more & have slightly less range for same battery," Musk tweeted.

The Model 3 starts at $35,000, but can cost more than $60,000 if a long-range battery, Autopilot technology, and other high-end options are selected.

While the Model X was based on the Model S, Tesla made some significant changes. The most eye-catching was the X's falcon-wing rear doors, which swooped upwards instead of swinging to the side. While the falcon-wing doors helped the X stand out from the crowd, they were complex and plagued with problems during the Model X's early months.

So it's not surprising that Tesla has decided not to put falcon wing doors on the Model Y, which is designed to be more affordable than the Model X. The new SUV will have "normal" doors, Musk says.

In addition to the Model Y, Tesla fans have also been anxiously waiting for news about the company's forthcoming pickup truck. Musk says that won't be shown at next week's event. Instead, the truck will be unveiled at a separate event later this year.

"Personally, I’m most excited by the Tesla Truck," Musk writes. "Maybe it will be too futuristic for most people, but I love it."