CLEVELAND -- A popular new tire that is becoming standard on a growing number of cars is generating hundreds of complaints.

Many drivers say it has a flaw, and when they try to replace it they run into another problem, reported 5 On Your Side's John Matarese.

The new type of tire is supposed to never go flat. If you run over a nail, you can drive all the way home.

However, many owners of these tires are unhappy.

Tom Lehn says the tires are the worst feature on his new Toyota Sienna minivan.

"You can see it's worn all over, but especially at the edges. It's wearing faster than expected," said Lehn.

Lehn bought the run flat tires to keep his wife and kids safe, so they wouldn't be stranded by a flat.

Then he learned that the tires can cost twice as much as a regular tire.

"It was $275 for one tire," said Lehn.

Tire shop owner Dan Brogan is not surprised by the high cost.

He said run flats are costly to produce because of the special hardened rubber sidewalls they require, which allow them to keep going with no air.

And that tougher rubber won't last as long.

"You can't have everything. A tire that runs flat and lot of mileage out of it, you can't have both," said Brogan.

But some car owners don't buy it, and have filed a class action lawsuit against Toyota and Dunlop tires.

The suit claims Sienna minivan tires last only 10,000 to 20,000 miles, and have to be replaced annually at cost of $1,300 or more.

Toyota and Dunlop won't comment on pending litigation, but Toyota dealers say the tires should last 30,000 miles in normal use.

Despite their price, run flats can still be a good feature if you do a lot of interstate driving or commute through a rough part of town.

That peace of mind might be worth $250.