I always thought that the cobra looked like the clumsy afterthought that it is.......
They're ugly....imho...... although.... I do see the purpose of them, but it's a shame something a bit more elegant and in keeping with the style of the car couldn't be designed.
It's always the first thing I take off when I buy a car with one on. It's easy to do, 4 screws hold it on and there's a plastic fitting to unplug. I always wrap it up well in insulation tape and tuck it out of the way.

Perhaps racks have been standardised now but depending on the age of car it was always hit and miss if they fitted or not. Even if you got the correct one for your car's age and bumper configuration it would still probably require a degree of adjustment/modification/fettling.........