Originally Posted by montclair2525

Looks to me that the hatch in the full open position is going to hit the box. There is room to move the box forward on the bars which should let the box be clear of the hatch.

Thule and Yakima both have a chart which helps determine which boxes fit with the hatch fully open.

I have a Thule Flow, a very long and low box designed for alpine skis, that according to the chart is too long for the hatch to open fully. It does fit by 1/4"! I started a cargo box thread a few months ago.

Originally Posted by dawiz4u

The Yakima box was all the way forward and still hit the back hatch. The Thule is a few inches shorter and more adjustable and has a better mounting mechanism IMHO. I drove Denver to Las Vegas with the Thule box and a full load and the car handled beautifully, even driving 85-90 MPH!

Originally Posted by dawiz4u

I needed a cargo box for a short-term move to California and went to REI to find one for my 2018 SQ5 with factory bars. I purchased the Yakima Skybox 16 for $499, since it has a lot of room and can handle skis up to 185cm. The problem is it was a little long and the angle of the roof caused it to sit at an angle and catch the wind. It made a bit of noise over 70MPH and I could see the front wavering in the wind. So I took it back and got the Thule Motion XT which is also a 16 cubic ft box, but is 5 inches shorter and made of thicker plastic. It fits better and doesn't waver in the wind. It cost a bit more at $649, but is much better!