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[jsmay311]

Just to add to the Tesla vs non-Tesla cold-battery regen stuff...

It’s not only the Leaf that has significantly more regen when the battery is cold. The Volt does too. (And I suspect most other EVs as well.)
And in both of these cases, the Tesla battery is much larger, so the difference in the C-rate is even greater than the difference in regen kW. The Model 3 doesn’t have an instantaneous kW number displayed, but my best guesstimate is that my 2013 Volt had cold regen C-rates up to 10x higher than my Model 3.
(See here: "Regen Limited" message on screen? where I saw 3C regen rates within a minute of turning on my old Volt after cold-soaking in <30F temps.)

I’m pretty sure this all comes down to the fact that Tesla uses NCA chemistry cells whereas almost everyone else uses NMC.

 

[brianman]

My wife, specifically, hates lack of regen. She won't drive the Leaf unless it's been charged to an SoC that will allow full regen, which is hard because Leafs don't make that easy. I'm sure she'll make me try to prewarm the 3 as much as possible when it's her turn to drive it.

My sympathies on this, but not on the vehicle behavior.