The O'Reillys parts store chain seem to have the Wix filters Cobras first around here. Any auto parts store that sells Wix branded filters is eligible to participate. They had to sign up for the promation in April/May. The Cobra is part of a series that has been on-going for several years.
Back in 1996 or 1997 the feature diecast was a '66 F100 pulling a car trailer with a '69 Boss 302 racer.
Auto Value/Bumper to Bumper parts stores have their own GRAY version Cobra which is limited to 3246 pieces.
The ones on eBay are bringing $100.00 to $140.00 and are coming out of New York State. It may be an Eastern US thing as the Bumper to bumper stores here have the blue version.
Happy hunting.
Fast Farmer