Building a complete car with scans - Front Upper Control Arm

I did this high poly model about a year ago when I was experimenting with different workflows. The high res mesh is a polygon model done in max with detailing in zbrush. I used a low quality scan as reference material so it should still be very accurate. This workflow ended up being too slow. My scan quality has improved enough that the only things I am remodeling now are machined surface and fasteners.