 So here's the inside deal at Treasure Valley Subaru on the WRX. Many of these WRXs have been on the lot for three months or longer, and that's the point where a dealer will lower the price to sell the car. So test drive a WRX at Treasure Valley Subaru this week and see if you like it. If you do decide to buy a WRX at Treasure Valley Subaru, you get 3.9% interest rates for 72 months. That's right. Subaru is now offering a 3.9% rate for up to 72 months on Subaru WRXs.