Unlike cats and germaphobes, automobiles need to be reminded to wash themselves. Drop a blatant hint to your lazy ride with today's Groupon: for $4, you get a Monsoon car wash (a $10 value) at Rain Tunnel Express Car Wash, valid at any of five area locations. The premium monsoon wash takes only three minutes to completely wash, dry, and playfully tickle your ride using Rain Tunnel's innovative automated technology. The safe, gentle auto-bath includes a clear coat shield, triple polish, and an underbody flush that leaves your steel steed gleaming like a Greek goddess dipped in donut glaze.
CityVoters named Rain Tunnel Express the third-best car wash in St. Louis for 2010.