Those interested & looking for a reasonable car rental rate from LAX for Coachella; after doing some searching around for a few weeks I was able to find a fairly cheap rate for the 10th-14th (not sure about W2 or a shorter period).
Budget Car Rental - www.budget.com -
~$52 before taxes,etc for a Hyundai Accent (good on gas) w/ unlimited mileage.
Use Offer Code (BCD) - W852873
Most other rentals I have seen for that period are ~$130+
If anybody has found anything better, please post up as I'm sure others would be grateful for the info.