I don't really like the analogy for several reasons, but what's wrong with IBM? Have you looked at their share price over the past 12 months? As of today, IBM is trading at around $164 billion market cap and paying out a dividend of over 3%. I'd say that's pretty good.
I don't short stocks because I don't believe in trying to time the market. I actually think Tesla could move well north of where it is currently trading. Not because I think they are going to grow to justify the valuation, but because I think lots of people will look at the $45 billion valuation and will incorrectly compare it to Amazon, Facebook (as you just did), Alphabet, and Apple and think $45 billion is low.
However I am long Ford. In fact it comprises the largest percentage of my personal portfolio. I continue to add more to it with every drop and just added more a few days ago. While the value has been dropping over the past couple of years, I've been collecting healthy dividends along the way ($F pays out now over a 5% yield), and am happy to sit and wait to see how long people will wait for Tesla to move beyond a niche auto maker and into the mainstream market.
Edit: One other point- this recent run-up is attributable to Tesla delivering more cars this quarter than expected, not because they just unveiled some new technology the market wasn't previously aware of. TSLA has been extremely volatile whether you've been long or short over the past 2-3 years. All it takes is one missed earnings report and it'll send this stock down at least 25%.