Less than what you would hope for, but more than if you wait another year.
The market is still soft, but you have a good color with factory stripes (only 25% of GTS's have stripes from the factory) and you don't have to many miles. If you can wait until spring you might get a little more, but if you are making payments or have some where else to put the money that you feel is a good investment.... sell now. Cars are the worst investment one can make. However, you can never go back and buy your 1st viper again and there are very few NEW GTS's left. If you decide later to get another, you will always compare it to the one you have now and wish you had it back. Tough choice.
If you married your 1st love, how much of life would you have missed? Is the grass greener?