This seems to be in keeping with Google's "Moon Shot" philosophy — investing in some projects with potentially high payoff, but low probability of success.
If Tesla were pursuing a project like this, they'd probably announce that they were expecting all their cars to ship with cold fusion reactors by 2020 — and then start hiring a team ;-)
If Tesla were pursuing a project like this, they'd probably announce that they were expecting all their cars to ship with cold fusion reactors by 2020 — and then start hiring a team ;-)