German Engineering: "Can you imagine selling a German engineering they didn't have a part in? Can you imagine getting a German to change their mind? The answer is a resounding YES, and it happened with the Torsen Differential. The Torsen is the heart of the Audi Quattro drivetrain. Has been since the mid 80's when tested, developed, and adopted. The Germans love mechanical solutions to engineering challenges, and Torsen was a fit. For any readers uninformed, the Torsen was an original invention of V. Gleasman. No question about it, mature proven product (now). Does the Iso-Torque measure up?? Is it really lighter, stronger, cheaper to manufacture, more durable, or make substantial improvements over Torsen? Who knows? You can look at the design compared to the Torsen and see a lot of similarities. Looks like two sets of outside gears have been removed and thrust plates installed. More questions than answers. We need more information. Information that seems to be held 'close to the vest'. The world needs more information, not just the few stockholders here who have a vested interest in seeing the company take off.