The new one that is called the UX31A and is made of solid aluminum that has a mild tint of bronze that gives it the special look. The weight is similar at around 3 pounds and the similarity almost ends there.
I am selling a used Asus Zenbook Prime UX31A-XB52 for $1000. I will accept payment via paypal.
Beginning Weight (April 2nd, 2015): 264.6 pounds.
Diet: LCHF, 1600 calories/day, 25 or fewer carbohydrates.
Exercise: Weight training morning and afternoon for 25 minutes.
Goal Weight: 190 pounds by July 1st, 2015.