the out to believe based systems are still quite reliable. the v.w. up sways ever subarus camera both have things well under control. we go a step further and stick masking tape on the windshield to simulate bird droppings the systems must be able to see past blotches like this. the subaru stereo camera gives a warning signal but the v.w. obsolete your system doesn t tell the driver the collision avoidance system is no longer active with it on his own on the way as has found that collision avoidance systems generally work well in various test situations and they can t say if a camera sensor is more reliable than a radar sensor and all the systems are limited by different factors and variables so the driver should not by any means depend on this team philosophy. now let s take a look at intersection assistants the german automobile club developed