By guessing
6.25"
5.25"
Back spacing is a wheel term. It is the back spacing of the wheel, to allow a larger tire to fit in the wheel well. It is built into the rim, so you have to order them with the proper backspacing, or officially called negative offset. A tire and wheel shop will have a tool that they can bolt onto your car, to determine maximun allowable offset, when ordering wheels.
Depending on size and steel or alloy it is approximately 5.5 inches
Yes they are both 6x5.5 with 4.5 in backspacing or 6x139.7
26"
Stock Backspacing is usually 4.5 inches.
At least a 3.75 inch backspace is required. Anything over that is mor than enough. TRUST ME
265/75/16 on stock wheel without rubbing. Any aftermarket wheel, especially considering backspacing or larger tire size will likely hit the wheel-well liner.
Yes. You need to find a company that makes a custom 15in. wheel that can provide a 8x170bolt pattern and less than 2in. backspacing to clear the rotors. you might have to grind down the rotors a bit but not enough for structural damage. As for the wheel its self you may need big flares cause the wheels are going to stick out very far due to the backing spacing and it is illegal in many places to run a wheel and tire that sticks out too far from the fender. Also custom wheels aren't going to be dot.
The length of a car is measured from bumper to bumper. The wheel base is measured from the center of the front wheel to the center of a rear wheel on the same side of the vehicle.
They measured the distance the wheel traveled on the ground which would be the same as the circumference of the wheel. If they then measured the diameter of the wheel and divided the circumference by the diameter they would have a value for pi.