Roof box design is a whole other story
What makes (or doesn't make) a roof box design stand out?
If you look at current models, their designs are very similar. If they stand out at all, it’s because of exaggerated lines that don’t fit with the automotive industry’s modern design language.
The basic form:
For a long time, we’ve been asking ourselves the following question: Is a banana-like shape that pulls the box downward toward the front optimal in terms of design and aerodynamics?
In principle, yes. However, every car—and especially every base vehicle—is different. So, when photographed from the right angle, a roof box can look good on a car (provided the base vehicle has been “lowered”). But when viewed from a different angle or mounted on an OEM base vehicle, the situation can be quite different. Furthermore, the car’s aerodynamics are compromised if the roof box is mounted too low. In other words, if the box is mounted too low, aerodynamic airflow no longer reaches the rear of the vehicle, where a spoiler is often designed to function effectively.
In the simulation on the right, which shows the typical underside of a roof box, the car's aerodynamics—and those of the rear spoiler—are significantly affected. The simulation on the left shows our solution and demonstrates perfect aerodynamics.
We weren't willing to settle for these compromises. So we set out to find a specialist in automotive design.
Our criteria: We want to look perfect on every car, which is a (slightly) sloping rear end has. Because we've noticed that the straight rooflines from the 1990s to the 2010s are no longer around. 
Hello , shooting brakes; hello ,SUV coupes; and hello,station wagons with sloping rear ends! Hello, too, to all you electric cars and sports cars—whose aerodynamics and design we consider sacrosanct!
It's not exactly easy. But it's doable!
So, together with various designers, we set to work. The process turned out to be really tough. Some lacked a feel for the perfect proportions and for automotive design itself. We had to go through countless rounds of revisions, and countless ideas were discarded. In the end, only one designer managed to win us over.
So, with an experiencedautomotive designer—whose designs are familiar to anyone who has ever picked up a car magazine—we set to work.
Our basic shape: a water droplet. The most aerodynamic shape there is.
Our design language: Tailored to the modern—and, above all, future—design language of our cars. No ridges, edges, or recesses—instead, sophisticated styling that makes use of light and shadow.
It took countless design drafts. An entire wall was covered with side views of the current and future model lineups from leading automakers. Two (automotive) designers failed.
But we finally made it.
Here's the first sketch:
Here's a fun fact: Our internal goal for the design was to make the roof box so beautiful that we'd want to put it in our living room. And we pulled it off!
The first realistic drawings will be coming soon!