I made my own.
First, I purchased a cheap nylon holster and cut the belt loop off of it.
Next, I attached a piece of velcro to the side.
I then stuck an adhesive strip of velcro on the side of my center console between the console and the passenger's seat.
I now have a holster which is securely fastened about a foot away from my right thigh on my strong side. Between the velcro and how it is wedged between the seat and console, it prevents my pistol from falling down into the seat, it holds the pistol secure from movement, keeps it instantly accessible with the grip just above the seat edge, and if you're in a state that requires it to be open in your vehicle, it's visible, yet it cannot be seen very easily by passing vehicles. (Just try and look at the passenger seat of a car next to you when driving) It can be done, but only if you definately know where you're looking, and only at risk to life and limb, so I'd consider it fairly concealed.
When entering or exiting the vehicle, it's a snap between my hip and the car holster, and vicey-versey.
Much more comfortable than having the thing digging into my side, and much much faster if I need it in a "situation" rather than worrying about clothing, seatbelt, or body position if it were on my hip.