Register and then buy or lease a 2005 Chrysler, Dodge, or Jeep by August 1 (offer not valid on SRT models, Viper, Sprinter, 300 models, Magnum RT or 2006 Charger).
Then go to United.com/chryslermiles and submit the car’s VIN number and date of purchase by August 31, 2005.
Update: Offer appears to be targeted, if you didn’t receive an email from United about it you may not be eligible.
Don’t hold your breath. This one seems to be targeted. But if you are going to buy one anyway, be sure to register anyway, since it costs you nothing.
From the terms and conditions: “Offer is not available to the general public… Offer is valid for the person named on the e-mail offer and is transferable only to immediate family members within your household with proof of address (valid driver’s license or state identification required).”