CVT gearboxes can make a droning sounds that retains continual, as opposed to increasing or decreasing with motor velocity. This can be a bit disconcerting for many drivers, and will take some getting used to. The CVT gearbox was initial patented in 1886 Along with the arrival of your motorcar. https://gearbox-cvt85173.blogdanica.com/34130845/gearbox-cvt-options