After five years of inspecting vehicles, Dallas mechanic Robert Garcia has seen cars with everything from whisper-thin tire treads to brakes ready to fall off. Garcia – like many insurers, legislators and safety advocates – can't imagine how bad the disrepair would be without Texas' yearly required safety inspections. "It would cause a big dilemma on the road," said Garcia, who works at Adkison Tire and Service on Irving Boulevard. But some states have dropped the basic safety review after driver complaints that they were annoying and unnecessary. And some automobile experts in Texas and across the country say more...