I personally have never heard of anyone having an issue with the Billboards for not being DOT approved. I have my car inspected once a year and either the inspector never noticed or didn't care or it's not an issue. I certainly didn't bring it to his attention and am not about to do lengthy 'research' on the 'law' concerning the issue. Call it, 'plausible deniablility': "What? There not legal? You gotta be kidding me! Who says so?"
Some have suggested it could be an issue with insurance following an accident, again, I've never heard of this actually happening. I feel the car is safer with these tires (Bill boards) than many other brands commonly found on replicas and as such I run them because they DO make the car safer. I was running Mickey Thompson's before, while they weren't bad, there no where near as good as the Bill boards, which also work great in the rain!
I'm skeptical of street drag race type tires because of possible cornering issues. I could be wrong, some say they corner just fine. I don't know if I would be comfortable proving that to myself coming down from 130+ at the end of the straight for the 25 mph hairpin at the end!
