You still can't do a tank turns with your DM, not matter what's the upgrades.
Hummer EV and CT both do have a differentials, even locking ones.
And there is a reason they developed their platforms on 3 motors. Really cheap Hummer EV is based on 2 motors, just like your DM Rivian.....but...
I know I'm beating a dead horse in here. But if you look at the history of differentials; there are Torsen Differential, Torque-vectoring Differential, Limited Slip Differential. List goes on and on and on. Why? The differentials are a problem. Rivian with 4 separately controlled motors...
Quad motor does need some software upgrading still, but it is clearly the future.
Differentials are going to be thing of the past. People talk about differentials, but most of them are unable to lock their diffs when they get stuck in the snow or mud. 4WD, one wheel keeps spinning, rest of...