Poked around and found a five-year-old thread that basically said "NO!" to running run flats https://priuschat.com/threads/anyone-use-run-flat-tires.168510/ Assuming the facts have not changed? Reason I'm asking is wifey told me today that a friend has a new RAV4 with a new feature -- tires that you can drive on when they are flat.... She said she wants them for the Prius. I told her I would "get back to her."
Well.....most SUVs are not known for a really good ride....OR for a really quiet ride.......OR for good fuel mileage either. So, while I don't KNOW for sure, I suspect that the situation hasn't changed much lately and if the above things are at all important to her, it might not be a good idea. Keep looking. There should be some recent information out there somewhere. Have you looked at the price yet ? I think that might scare you off too.
HMMWVs used to have 'em, back in the day. ....BUT they still never left the barn without a spare. AT LEAST not in the last unit that I deployed with.
Run flat tires are usually: more expensive, weigh more, more difficult to repair and fewer shops have equipment to replace them, have less flexible sidewalls (so mpg's go down and ride quality is harsher). Over all it seems like alot of negatives just so you don't have to carry a spare tire. Posted via the PriusChat mobile app.
Bridgestone Driveguard claim they ride like normal tires. I have a Scion iQ (tiny car) which doesn't have a spare. When the original tires wear down or fail I am for certain switching to RunFlats. Let's be honest, when's the last time you checked the air pressure in your spare? Last time I did it was down to the low 50s PSI. To counteract the extra weight I'm saving up $$$$ for super light wheels, otherwise your car may start to drive like a truck. moto g(7) power ?
I don't think Rav4 comes with run flats. Could wife's friend be incorrect or could dealer have swapped out tires as something to charge more for? I wonder if you could get a look at that Rav before "getting back" to your wife on what to do.
Ignoring if you should, here are some close to Prius sized: https://www.tirerack.com/tires/tires.jsp?tireMake=Bridgestone&tireModel=DriveGuard&partnum=96HR5DGRFT
Two potential problems with that: They may not be available in the proper size. AND Putting a really stiff tire on a car that small might jar your teeth out. IIRC, it doesn't ride very good to start with. I guess you didn't figure out what the roller skate in the hatch was there for ??
Thanks for the warning. Yup there are only two different tires available in the original size, one the original Goodyear Assurance Fuel Max and a Federal Formoza FD2. +0 size tires and wider wheels are the plan. I'll definitely update my http://www.iq-forums.com friends when the time comes. You don't happen to be a dentist are you? (May have some work for you if you are. ) moto g(7) power ?
Can't say that it will apply to that model but.......... Wider tires generally means more rolling resistance and lower mileage. And sometimes with a really light car, it can make the handling somewhat (more) squirrely too.