Rivian has a new high-performance EV that you almost certainly don't need. On Tuesday, the automaker unveiled a quad-motor variant of the second-generation R1. The EV can do remarkable things, but ...

SAN FRANCISCO (KGO) -- The R1 variant is the new strain of COVID-19 researchers are keeping a close eye on. The CDC identified "multiple spike protein mutations" in this variant. "The R.1 variant does ...