You can switch to a 215/50-15 or 175/60-15 if you can find any tires in these sizes. Other optional tires which are acceptable are 205/50-15 and 185/60-15 which you can find. My advice is to stick with the OEM size.
Yes, that is an acceptable swap.
175/60-15, 165/65-15, or 215/50-15
nope
Yes, you can substitute 195/55-15 tires for 185/55-15 tires, but it may affect handling and comfort. The 195 tires are wider, which can provide better grip and stability, but may also result in a firmer ride due to a larger contact patch with the road. In general, the 185 tires might offer a softer ride, as they have a slightly smaller contact area. Ultimately, the choice depends on your driving preferences and vehicle specifications.
No. If you want to go to the wider 55 series tire then you need to go to a size 225/55-15. A 195/55-15 would be 6.17% smaller in diameter and you never want to go beyond a 3% difference. The 225/55-15 tire would be only 0.97% smaller which is as close as you can get to the OEM size.
195/50-15 is acceptable but 205/50-15 is better. 175/60-15 is acceptable but 165/60-15 is better. Any of these will work well.
Yes, but your speedometer will be 1.35 mph off.
Of course you can but that is not a good swap. An excellent swap would be a 195/55-15.
No, definitely not. The 195/65-15 tire will be almost 8% taller and will cause the speedometer to read 55 at 60 mph. There is almost a 2" difference in overall diameter. Your handling, ride, steering, and stability will be compromised.
No, 205/55 R16 tires will not directly replace 195/60 R16 tires due to differences in width and aspect ratio. The 205/55 tire is wider (205 mm vs. 195 mm) and has a lower sidewall height (55% of 205 mm vs. 60% of 195 mm), which can affect handling, ride comfort, and overall vehicle dynamics. While they may fit on the same rim, it's important to consult your vehicle's specifications and consider potential impacts on speedometer accuracy and suspension.
195/55/15 195/55/15
You can use a 195/55-15 but I would advise against it. With this swap your speedometer will show 58.8 at a true 60 mph. A much better swap would be to go with a 205/50-15. With this swap your speedometer will show 59.8 at a true 60 mph. All other factors of the tire will be almost identical to the 195 except the section width which will be .79" wider.