One reason auto companies spend millions on racing cars is that they offer the opportunity to test new designs and technology under extreme conditions. Using the cars in a real-use setting provides an opportunity for the product.

Beta Testing

Explanation:

Beta Testing is the product development stage when a product is tested in a real enviroment with the goal of finding any issues (in software development these are referred to as bugs) the product may have, in order to sort them out in the final stage.

A racing car running under extreme conditions is a good way to do beta testing because in such circumstances issues or bugs are likely to arise, since the situation by definition is extreme. The auto company can later on check for the issues, and solve them before releasing the products.

the answer would be voluntary exchange -

"the act of buyers and sellers freely and willingly engaging in market transactions. moreover, transactions are made in such a way that both the buyer and the seller are better off after the exchange than before it occurred."

hope this : )

-shy

a.