[TalonDJ]

Most rear wheel cars use the back right tire as the drive tire, unless you have positraction. When you turn right and do it the weight of the car goes to the left, onto the non drive tire, causing the right tire to lose traction and slip free easier.

Incorrect. Most rear-wheel drive cars have a limited slip differential which applies more power to the tire with less traction. That does not seem to make sense bit it is true. The right rear tire seems to slip easier because cars (in the US) turn right much tighter than the turn left (not be design, by convention because we drive on the right) which gives the right rear tire more wear than the left. It is equally possible to spin a car right or left (assuming equal tire wear and weigh-less driver and passengers). Many factors of an older car's wear and tear may change that but it is not a feature of a standard differential.

[-YYZ-]

“Most rear-wheel drive cars have a limited slip differential which applies more power to the tire with less traction.”

I think you meant “open differential” - see my post #91. Interesting explanation for why the right rear wheel would tend to spin first, though - I hadn’t considered those possiblities.