What is nice about Elephant carwash, besides the big pink elephant neon sign, is that it is a full-service carwash that works fast. You can get anything from an exterior wash with a human-hand wipe-down for around $16.00, all the way up to the platinum package, which costs about $45.00. The platinum package gets your vinyl, tires, rims, floor, etc cleaned. Basically, the 'full meal deal' of carwashes.
My recommendation, if you are getting the Platinum package at least, is to make it obvious you are going to tip them, and personally inspect the car for any missed spots. There are always spots they missed. As long as you are willing to take an active part in the process, you can get your car cleaned really well for $50.00 and a half and hour of your time.