Woodbridge Public Auto Auction Please HELP I was sold a 2004 BMW and was Ripped Off...Car couldn't pass emissions after purchase Woodbridge Virginia

Greetings,  I secured a loan from Lendmak Financial Services  for $4,799.25 along with $5000.00 of my own funds for a 2004 BMW from Woodbridge Public auto auction at the sales department. The next day after taking possession of the vehicle I took it through inspection at The District of Columbia Department of Motor vehicle Inspection station. At that time the vehicle fail miserably. They inform me the vehicle smokes badly and that the obd monitors are inoperable therefore its no way possible to test the vehicle for emission. That renders the vehicle useless and will not be able to be registered. Before purchasing the vehicle  'as is'  Woodbridge  told me it failed Virginia State inspection for 2 tires and tag light bulbs.  

I contacted  Woodbridge Public Auto Auction and informed them of the situation. They told me to bring the vehicle back and I did. They took the vehicle to Pep boys for diagnostics at which time the technician informed me they were also unable to get any readings related to emission, The same results as The District of Columbia. Next they took the vehicle to have it tested for emission which yielded the same results. The managers At Woodbridge Auto tried to persuade me that it's the sensors that are bad which is not the case. All test indicate the sensors cant read to determine it they are good or bad.  I indicated that I don't want the vehicle or the hardship such problem presents and they refuse to cancel the deal and refund my deposit.

The vehicle is useless to me as well as Lendmark and will not pass any state emission as required by law. I need help getting my money back.  I refuse to pay for a vehicle that cannot be registered in accordance to the  law.  I returned the vehicle within 24 hours and was very disappointed in the way they handled the matter.