Skip the run-flat tires. One-time, conditional convenience is nice, but in the big picture, run-flats are likely more trouble than they're worth.

The front tire is a 245/45ZR-17, a very common size and one that nearly every tire manufacturer offers in at least one of their ultra-high-performance tire lines.

Run-flat tires are most often found on luxury vehicles. BMW has been the most enthusiastic proponent among the leading automakers, and seems likely to make the tires standard on most models ...