I have an SC 430 equipied with Michelin Pilot Sports A tires, got rid of the run flats, wish I had done it when I bought the car! Car now drives, rides and handles like a Lexus. I have a $25.00 air compressor in my trunk in case I have a flat. Similar to BMW mobility but hundreds less. If I have a full blown blow out I quess I'll call for a tow but so be it, car drives like a dream, I highly recomend the Michelin Sport AS, wouldn't be surprised to see Lexus go that way with all the complaints about run flats.