Lucid's drivetrain seems to be more efficient than Tesla's, to the point where some Tesla fans have assumed Lucid must be lying about their battery size: https://old.reddit.com/r/lucidmotors/comments/pq0xof/tesla_f...

I guess we'll see for sure once these cars get torn down and analyzed by third parties, but Lucid's drivetrain tech does look fairly promising so far.