At first sight I did a double take and thought surely you can't drive with a canoe mounted like that?
Clearly not when you have one of these which seem to be called variously a drop rack or kayak loader.
A few years ago I spoke to an elderly couple who had a similar version on a small 4x4 and they said it was really good and made loading their double sit on top kayak easy and simple, so they could carry on kayaking well into their 70's.
These devices clearly put additional stress onto the car roof when the kayak is alongside, and some of the engineering makes me a little nervous, like a failure may result in kayak and rack slamming into the side of the car, eek. For now I can still single hand lift our kayak onto our SUV, but in a few years time this might be the way to go.