What are the most critical features to prioritize when selecting a car rack for transporting bikes at high speeds? Ive heard conflicting opinions on the importance of factors such as aerodynamics, stability, and weight capacity, and Im unclear on how to weigh these considerations against one another. Are there specific materials, designs, or certifications that are particularly well-suited for high-speed travel? How do features like tilting or folding mechanisms impact the overall performance and security of the rack at high velocities? Are there any specific brands or models that have proven themselves to be reliable and trustworthy for high-speed transportation?