Welcome! One of my cars is the same as yours, 92 Silver/Black MTX. Are you looking to sell your car or just trying to get values? If you are selling, then you would need to follow the instructions in the Shotrader section. If you are looking to get an idea of what other Gen 2 SHO's have been selling for you can look on ebay now and see a really nice example of a low mile Green MTX. Take a look in the Sho Finds section as well. Another website that has had nice SHO's for sale is the Bring a Trailer site link below. Depending on the condition of the car and maintenance done will affect the value of the car.
https://bringatrailer.com/search/sho/