Civinfo Hobbyist Trader
Car: 2010 CTS GT
Join Date: 8th May 2013
Location: Cambridge, UK
Thanked 410 Times in 330 Posts
Having had a rear camera fitted for a while now, I would actually prefer sensors if I could only choose one, but both would be great.
The camera really helps in the dark or when the rear window is obscured by condensation or rain etc.
I haven't fitted any sensors yet, but the camera was easy enough to install. I have some pictures of the process in my build log.