Andrew's Carjacker
I'm not sure how one is supposed to correctly wear this holster, but wearing a holster that puts the grip of a pistol into or near your crotch and the hammer spur under your xiphoid process is not safe in a car. How are your supposed to wear a seat belt with this holster? Place the seatbelt above the holster and in a wreck (or sudden stop) it's going to push the grip into your crotch or or thigh, plus you'd already be wearing the seat belt dangerously high. Place the seatbelt under the holster and in a wreck it's going to push the hammer and slide into your rib cage, liver, diaphram, lungs, etc.
Wallets, jewelry, pins, pens, badges, name tags, cell phones, PDA, zippers, firearms caught between a seat belt and the body can cause major injuries and turn a minor accident into a major one.
IMO car accidents are a bigger risk and greater threat, than any threats I might face that can be resolved with a CCW in a car. I'd make sure my holster didn't interfere with any of my car safety devices, or minimize the risk a holster and firearm poses in a car accident. Vehicle safety first, access to CCW second.