There's a new twist to slot machines at the Isle Casino and Racing in Pompano Beach: instead of cash, players can win a new car.

The Burning Wheels Mystery Jackpot promotion began last week, and is expected to yield a $27,325 Pontiac Solstice convertible about once a month.

"We have had several drawings for cars and we always have a great turnout. Now we have a way for someone to win a car at any given time during the month," slots director Bill Crafts said. It is the only South Florida casino to offer a car as a slot prize.

It works like this:

Players sit at a bank of 26 $1 machines, wagering $1, $2 or $3 per spin.

The car is set up on a mystery progressive controller, which links all of the machines and tracks the amount of coins bet. The casino sets a starting value of 1,200 (like on a progressive slot machine) and a maximum value of 15,000. The mystery controller will select a random number between the starting value and the max value.

The coin that pushes the jackpot pool to the exact mystery amount will win the mystery jackpot. In this case, a car.

Crafts estimates that the car will hit somewhere between 1 day and 63 days, with an average hit every 32 days, presuming players sit at the $1 machine as much as planned.

A second jackpot, of $50 to $150, will hit every couple of hours.