altech cars sold me a lemon chantilly Virginia

So you bought a used car and had issues after a year?  You stated this within your own post.  Did you by chance have a mechanic that you trust look at it before buying the car?  Of course you didn't because you would have otherwise have mentioned it.  Be thankful that a used car lasted a year.  You also stated that you put roughly 20,000 miles on the car.  That is a hell of a lot of mileage to put on a car in a year, even if it is a newer car.  Shame on you for not having the car checked out by a mechanic before hand and trusting what the salesperson was telling you.

Check your paperwork.  Did it include an add-on, bogus, phoney fee of $500 for alleged "processing"?  They are playing one of the con-games which made Bogus Billy Heard famous.  It works like this:  They advertise a dollar figure for a car which they represent as the "price".  Guess what?  It isn't!  Its a FAKE price.  To buy the car, you must pay them an additional "fee" of $500.  The REAL price of the car is what they represent it as plus this bogus fee. 

They give this bogus fee an official sounding name in order to con you into thinking its legitimate.  It isn't!  They don't have the honesty or integrity to post the real price of the car.  Instead, they LIE about it by making it lower than what they really want but make up the difference with their bogus fee.  When a dealership lacks the integrity to do business honestly, all bets are off.  They tell the world they are LIARS playing the bogus fee con game.  As such, they cannot be trusted...PERIOD!