My Diamante does
I know a 1996 Mazda 626 has this tire as OEM. I have one. Fourth Generation Honda Preludes also (1992 - 1996)
My 2008 Honda Fit!
My 2007 Honda Fit Sport does. Acura Integra
My 2005 PT Cruiser uses 195/65R15
Yes, you can.
NO, the last digits (R15 and R16) refer to the wheel (rim) size. If you change wheels you can install the 16" tires. A much better swap would be to install 205/65-16. The parameters except width will be almost identical to the 205/70-15 tire/wheel combination. Your speedometer will read 59.5 at a true 60 mph.
Yes, the R is a speed rating of 106 mph and the T is 118 mph. So you can use the T rated tire if you wish.
205 65 15 tires will be narrower but taller than 215 60 15. not reccomended, because it may throw off the speedo. it is a narrower tire and you may suffer on cornering etc. YOUR CHOICE !
Lots of vehicles use this size tire. Why would you even ask such a question?
Yes you can use 205 60 r 16 tires in place of 205 50 r 16. They are only slightly higher.
The approximate fuel consumption of this engine according to my experience is 10 Km/ Liter. It gives you more extra km. if you use tubeless tires size 205/70 R15" C tires.