I had two of the stock near-full size temporary spares lying around (one from my car, one from my old parts car) and I really wanted to use the wheels for other tires. But it would have been a shame to let two full-tread tires go to waste. Plus they were like 18 years old -- they were so hard I thought they might last 1/2 the day in the wet. So this parking-lot event was the perfect venue to put them to rest. After running a few laps, it became apparent that they just plain sucked, so I headed over to the skidpad and proceeded to do about 30 large circles until they blew:
Aftermath:
When changing tires, I usually leave the car in neutral (idling down) and the ebrake off (heard horror stories of people putting the ebrake on with hot brakes and having it freeze). Now normally loosening lugnuts isn't a problem if one of the rear tires is still on the ground. However upon trying to loosen the driver's rear lugnuts, I found the wheel was spinning in the air -- despite the right-rear being on the ground. That was the first sign my LSD had about had the weenie. This was the 2nd:
On right-hand turns, the car now acts like it has an open diff and understeers:
Left hand turns are perfectly OK... (And yes, the license plate lost a bolt. Stockton has a "slightly bumpy" section)

Aftermath:

When changing tires, I usually leave the car in neutral (idling down) and the ebrake off (heard horror stories of people putting the ebrake on with hot brakes and having it freeze). Now normally loosening lugnuts isn't a problem if one of the rear tires is still on the ground. However upon trying to loosen the driver's rear lugnuts, I found the wheel was spinning in the air -- despite the right-rear being on the ground. That was the first sign my LSD had about had the weenie. This was the 2nd:


Left hand turns are perfectly OK... (And yes, the license plate lost a bolt. Stockton has a "slightly bumpy" section)