The Pima County Board of Supervisors have given the green light to staff to solicit bids to lease 400 acres south of the Pima County Fairgrounds for open-wheel racing.

The trick, however, will be to find someone willing to spend tens of millions of dollars to build a track popular with the various kinds of open-wheeling racing.

County officials are optimistic the undeveloped land would be perfect for such a track, noting there is no nearby neighbors to complain about the noise.

The county has been looking to expand the site for years, looking for ways to complement existing attractions.

The county-owned park already has a paved NASCAR track at the Tucson Speedway, the Southwestern International Dragway and the Musselman Honda Circuit.

The county may be able to offer some economic incentives to the developer of the racetrack, but county staffers were not willing to elaborate.

The Board directed staff last week to begin the process to solicit bids. 

Viable bids could go before the Board as early as later this year.