Will I be able to deduct the sales tax on a motorhome purchased in 2018 in addition to regular sales tax tables in 2018 as in previous years?

I know I'll be limited to $10,000 max deduction for sales/property taxes, but the amount I paid for sales tax on the motorhome will make a difference if I will itemize or not this year (2018). The sales tax module in Turbo Tax won't be available until 1/17/19.