This week, Rivian (RIVN) and Lucid Group (LCID) – both among the few credible, well-funded, and quality startup electric vehicle (EV) plays – released their latest quarterly earnings. While LCID stock fell over 14% after the report, Rivian erased its early losses to end flat. The earnings reports highlight the divergent paths these two companies – which otherwise have a lot in common – have been pursuing. Both RIVN and LCID went public in 2021 at eye-popping valuations, and raised billions of dollars of (since-depleted) cash from investors. While Lucid became the biggest special purpose acquis…