Beyond the smoothed-out ride, Porsche has made shifting (both clutch movement and toggling through the six-speed gearbox) easy, and low-speed steering effort is also minimal.

FORBES: Overview

Patrick Gruber , the technologist steering this effort, sees a huge market ahead.

FORBES: Shucking Petroleum

It's one with very sophisticated steering that varies effort according to speed.

FORBES: BMW 745i

Thanks to David Ryan for steering me toward this fascinating, instructive effort.

FORBES: To Grow The Economy, Grow People

None of this is too light, by the way: At speed you get effort and feel back in the steering wheel, and gearshifts can be executed quickly.

FORBES: Test Drives