Last summer, CEO Elon Musk told employees in an email obtained by Electrek that “it’s time to bring Tesla Semi to volume production” without updating the timeline. More recently, Tesla has indicated that the electric truck would enter production this year with some deliveries to customers. Now another new Tesla Semi prototype was spotted in Truckee, California this weekend (pictures via SacTesla): The new electric truck features the same changes found on the other new prototype spotted earlier this month. But it is definitely a new prototype since it has different wheels than the one from earlier this month, and the back of the truck also features a different setup of the components: The truck was also heading east, like the previous prototype. It was suggested that it might have been heading from Fremont factory to Gigafactory Nevada, but it ended up going much further east, and it was spotted all the way in Chicago.