Yes. A tire that is "scalloped" can make a rumbling noise.
Yes it can.
We used to call a car with the spare tire mounted to the rear bumper a car with a continental kit.
A car can fishtail when a rear tire blows due to a dramatic reduction in traction. When the tire blows, it is quickly ripped from the rim which leaves very little contact with the road.
Track is the dimension from the centerline of the tire tread on one tire to the centerline of the tire tread on the opposite tire on the same end of the vehicle, front track or rear track. Wheelbase is the dimension from the centerline of the front tire to the centerline of the rear tire.
Its under the car at the left rear in front of the rear tire
in the rear of the car underneith
Yes it can.
Underneath the rear of the car just forward of the rear bumper.
under the car in the rear
Yes it can.
Could be something loose in the trunk like the jack or spare tire. It is also possible that the exhaust system is contacting something on the subframe of the car.
It's in the rear of the car, near the right rear tire.