Tesla CEO Elon Musk has loads of grand ideas and future plans. To say he's optimistic would be a major understatement. While the Model Y came to market early, Gigafactory 3 in China  went up in record time, and many other "promises" are coming true,  there are always Tesla future projects on the back burner, such as the Tesla Semi and Tesla Roadster.
 We could also mention Musk's early and repeated references to the  Full Self-Driving capability and a cross-country demonstration, as well  as self-driving taxis among other things. However, these are not as much  on the back burner as they are continuously underway, just not yet  ready and taking much longer to come to fruition than Musk hoped for.
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