Saw a regular cab SR5 with factory option 20" tires. NOWHERE in Toyota's website nor Edmunds do I see this option available. The 20" tires ARE LISTED on the sticker along with the trucks other options. It's NOT one of these dealer add on options. The trucks sticker is $32K+, dealer asking $26K including rebate. Trucks looks great and even has the $1K exhaust high performance option. Why does this truck have this factory tire option when it's not shown on any website as an available option? Did Toyota quit offering this option or has it just started offering this option?