Get a car camera

I still would get a GoPro witch gives you more options. You can mount the camera also outside with a suction mount and is waterproof and dustproof.
Some of the older models are fairly cheap now.
Check this video for some mounting options:

http://www.youtube.com/watch?v=XApfT4GBRLM&list=PLvd7ePjMDUyWbGMctWpkXFq2K-Z1-DkF7

I would highly recommend the Blackvue DR400G HD as a fantastic car camera.

The advantage of a true dedicated vehicle mounted camera over an action camera like Contour, Go Pro, Sony AS15 and more is a camera like the Blackvue has a continuous loop that will record over and over so no need to consonantly clear the memory card, has adjustable G sensor and if activated will store video 5 seconds before the impact and after into a separate secure file, it can start recording when you start the vehicle and stops when you turn the vehicle off, has parking mode that starts recording when it detect movement and is very small and easy to hide and has GPS function for location and speed viewable from a computer.

I also have a Contour +2 that i use as a helmet cam, the Contour +2 has GPS so you can record your location and speed viewable from a computer.

I would say a camera with GPS is a must and I believe the Hero and Sony don't have GPS data logging.

For the price you won't get better than these.

LINK

another one is onsite camera australia.
had a blog or something on a current affair.
but i was on youtube or something, or lcool and a link came up.

yeah everything is overseas these days, but this company backs its products.
and full 12mnths warranty, and a wide variety of options camera wise.
ive seen the footage, both in day and night and the quality is unreal of footage taken..

mind you they show up customers videos of idiots on the road, and you kind of get side tracked, thinking are their realy this bad drivers on our road..

camera's are very well priced 349 or soo.. that gets you nearly the top of the line camera, yet to be properly released to the market, soo its new, up to date technology.

Hi, Alie Ree I use an $80.00 camera from Super Cheap and it works fine, the only thing that I have changed was the SD card (15gig instead of 4 gig)
Hope this helps.
Bushy.

Nothing like recommendations from people who have proven the product, I ended up with skinned knees and elbows, yes I came a gutser, bought a Navig8r HD after viewing video of this gadgets recording. Wish they had told me the recording had been digitally enhanced and the recording I got was very much inferior. Not the first time, and probably not the last, that I've blown my brass on expensive toys but boy do I love getting a little bit back with a not positive review on Product Review Australia.Cheers.

Quality video plus GPS references for position and speed

Blackbox camera

Alan

I have the Itronics IBT100HD, it is an excellent camera, it will record while you are driving, giving speed and location via GPS. It comes with a 32 gig memory card, so there is no need to purchase one.
It will also record in Park Mode, for this feature, you need the little power box that you can purchase for approx$40, it is very easy to install. I have O experience with electrics and had it up and running in 20mins.

The power box has a couple of wires that you simply connect to your fuses, pull the fuse out, pop on the wire and put it back in. You can configure the amount of time you want to camera to record while you are parked and you can also configure the min voltage, so if the voltage drops it will automatically turn the camera off so the battery doesn't drain.

You can change various settings from within the software, things like the percentage of Parking footage v's driving footage v's event footage, this allows you to select which files are overwritten first.

Clarity is very good and it can read plates quite well, night footage is also one of the best I have seen in a CMOS camera.

http://www.autoblackbox.com.au/index.php?route=product/product&product_id=81

Looks like you are just looking for a inside black box. If this is the case I withdraw my suggestion about the GoPro. Too bulky and invasive for that sole purpose.

What is the sole purpose of you installing the dash cam? Since you are referring a HD camera, they might cost quite a lot. You can prefer buying a used one (albeit in good condition) from many online sources like http://www.automotix.net/accessories/ which will provide you with high end model for the cost of a mini cam along with a warranty and free shipping. These sites also provide good discounts and buying from them prove to be beneficial at times.