I think it's a little too wide sometimes. Like you can't have it forward facing and be too far behind the driver and expect to see anything. I am happy with the camera the way it comes from the factory. Just need a big SD card.

For example, suction cup mounted on trunk of M3...
YouTube - FAST Autocross SPC 11-14-10

Suction cup mount on rear quarter glass...
YouTube - Jeremy - Corvette Club Autocross - 10/31/10

Hard mounted to interior...
YouTube - 12-04-10 FAST Autocross Brooksville