or try the Griot's SprayOn CarWash.
was pretty skeptical to try at first, but i use it when i drive my hobby cars through puddles or something and dont need to wash the entire car. works great. no swirls if you do it right.
buy extra towels...and remove their tag completely before use.
Car Care, Detail Supplies, Garage Organization, Car Accessories - Griot's Garage 800-345-5789