Tesla (TSLA - Get Report)  CEO Elon Musk announced a new electric powered semi tractor-trailer truck Thursday with a range of 500 miles, and threw in a surprise announcement of a new roadster that he said would be the fastest production car ever, with a top speed of 250 mph.

The announcements mark the car maker's latest transportation forays even as it struggles to build and deliver tens of thousands of its model 3 automobiles.

 

Musk said the trucks, scheduled to come into production in 2019, will accelerate from 0-60 mph with a full load of 80,000 pounds in 20 seconds. He also claimed the vehicles have a lower drag coefficient than a Bugatti Chiron supercar. No pricing data was offered, but Tesla is asking for $5,000 to reserve one of the vehicles.

In a surprise, Musk also announced a new roadster sports car with a range of 620 miles. The car will accelerate from 0-60 mph in 1.9 seconds. "This is the base model," Musk said. Each of the first 1,000 units of the car, called the Founders Series, can be reserved with a $250,000 payment. Assuming they are fully subscribed, that will bring in $250 million to Tesla.

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