Gifted a car in 2014 used in my business, used the KBB for basis for depreciation. sold car in 2016 at a significant loss over the basis. Can I claim a loss on the sale?

I was gifted a car in 2014 used in my business from a great uncle who passed away, I used the KBB for basis for depreciation for the last couple years. Sold car in 2016 at a significant loss over the basis. Can I claim a loss on the sale?