No matter what, these tires have to be heavier. I can imagine the would make tires with different rubber durometers and spoke thicknesses to accomidate for different vehicle weights. The skidsteer(Bobcat) machine in the other thread weighs about 8000lbs, where as the Audi is probably around 3300lbs.
"Driving is like a narcotic, an addiction that can take over lives. It ruins people, breaks families apart, and even kills. Itís habit that needs to be fueled. Time, money, rationality, sweat, knuckle skin, and anyone who disapproves are of little importance to a driver, and are often overlooked. Hi, Iím Nelson, and Iím a drivaholic."