Used Class 8 sales rose in December, marking a seventh consecutive month of year-over-year increases. Sales reached 21,500 compared with 19,300 a year earlier, according to an ACT Research Report. The average price of a used Class 8 sold in December also rose \u2014 17% over the year-ago value. ACT Vice President Steve Tam said, \u201cThe buyers could have gotten better prices if they\u2019d bought earlier in the year, but they still got very good value for their money.\u201d\nLearn more about your ad choices. Visit podcastchoices.com/adchoices