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Those cars are sold at a very low price on the Black Market.
These car are selling at a very low price for the duration of our Christmas Car Sale.
He sold it for £100
Those cars are sold at a very low price on the Black Market.
These car are selling at a very low price for the duration of our Christmas Car Sale.
He sold it for £100
Thank you for your reply David L,
Does it only depend on whether you specify the price of the item?
I think I have come across both the forms in my (very little) experience. Why shoud one use at or for?
at/for a low price 
Linear Mode
