The Tesla Model S has some door leather that is susceptible to severe wear very quickly -- so I just applied SKUFF to those areas.  The instructions and applicator were excellent and easy to use.  Time will tell how it works, and I plan to update my review depending on how it holds up.  Hoping based on the reviews of other leather products, that this stuff will work!  For now, giving it 5 stars -- hope to keep it that way!