No, that is a very bad substitute. If you want to go with a 70 series tire go with a 195/70-15 which is a great substitute.
no
Yes, they can
NO, the rim size is different.
Yes, they can
215 65 r 15 or 205 60 r 15
No this is a bad substitution as the 205/65-15 tire will be 5.07% smaller in diameter. A good substitution is 235/65-15 which is only 0.63% larger in diameter which is a good swap.
No, your speedometer will be 3 mph too slow. A 205/60-15 will be a good substitute with almost no difference in overall diameter.
Yes, they are only slightly different.
Normally. yes.
Yes, this is an excellent substitute.
no there is too much height difference
No 205s are not wide enough and are a lot shorter