Vehicle deduction

I purchased 2021 Uukon in my name, use for business and deduct mileage, over 6k pounds, notice that turbotax asked about weight, yet saw no further deduction.  I thought I could deduct 25k off the first year.  I also have a friend that deducts 100% of truck the year purchased, he does not take mileage.  What are my options?

thank you.