Wait for profit takers to bring it down a little but yes, if you're willing to hold for the long term -- 5+ years at least -- I believe in it. I think a $100 price target is not absurd. Of coruse, Tesla is so comically far from becoming a mainstream car company that it's not for the feint of heart. It's not their products that will challenge them I don't think. It's the difficult of scaling a car company. No easy task.
I'd add it's also probably a good idea to wait for some bad news since the market is probably likely to over-react and anybody still skeptical will see that as an exit point to take profits.