Who Takes Donated Cars?

In their Publication 4302 and 4303, the IRS notes there are four ways that charities use your car.

• Charities that actually put the tire to the road and drive your car in their charitable efforts.
  
  
• Charities that sell cars that are donated and use the cash to help further their charity.
  
  
• Charities that hire an agent (for-profit) to run their car donation effort and get a percentage of the sale.
  
  
• Charities that give permission to independent for-profit companies to encourage donations and charge a fee for the use of their name.

A donation to the last variation on the theme DOES NOT qualify as a tax deduction. Well, how would you know? How can you find out which charity is going to benefit both themselves and your bottom line?