The Rivian R1S Tri-Motor was already the quickest SUV we’ve ever tested, hitting 60 mph in just 2.86 seconds. We didn’t think anyone could possibly need a more powerful version, but the folks at Rivian disagree. After a lengthy wait, the 2026 Rivian R1S SUV and 2026 Rivian R1T are now available in Quad-Motor configuration.
Â
