Trading in an old car to offset the price of a new car purchase is known as an _________ given by many car dealerships. Marketing Trading in an old car to offset the price of a new car purchase is known as an _________ given by many car dealerships. A. Cash Discount B. Promotional Discount C. Allowance D. Product-line Discount Answer: C. Allowance Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+