axles

The KTX also uses additional powered axles on the first and last cars, but it still has a lot more unpowered axles than powered ones.

For example, the only powered axles on the French TGV are at the front and rear of the train.

And that's just axles, which aren't exactly the most difficult part of the drive train.

When the front and rear axles are run by independent electric motors with electronic power/brake distribution and regenerative braking feedback systems?

The axles are basically the same as with the Prius or any other car for that matter with wheel bearings and CV joints.

It might have a bit of oil in the thingy that transfers electric motor power to axles, or maybe it doesn't have that thingy.

There is a lot to automate, for example shifting the trailer tandem axles or the 'fifth wheel' to more evenly distribute the weight per axle.

Where are the old generic studded pieces, gears, axles, etc?

Want Land Cruiser axles on a Land Rover or Jeep?

By standard axles I meant that there are really only 2 types on production cars in the last century, fully floating and not.

Then axles got developed, then spokes, then tyres etc.

And yes, it has unpowered axles in the middle.

Crossing into Mexico, specifically at the inland military checkpoints, I've also have had occasional difficulties, resulting in a required "donation" to prevent my fully loaded car from being searched down to the axles.

Obviously, torque availability at 0 rpm with a flat curve is the notable difference, but remember that launch control in the BMW will also occur at peak power RPMs with a clutch or torque converter taking up the difference in road "RPMs", so it's not that dissimilar a comparison at least in regard to the strength of gearboxes, half-shafts, differentials, axles, CV joints, et cetera.