Spacey one of those in your van will make it the most advanced on the road!
I bought something similar in Taiwan about 5 years ago, but didn't have the bluetooth compatibility, and didn't work well in sunlight. This one looks much better, would love to see one in the flesh. I like this one because it is bluetooth and doesn't need power cables etc, looks like a rechargeable battery.
Many newer BMWs from the E60 5 series onward are fitted with heads up display and they are particularly good even in day time driving.