Remember those engine packages everyone used to ignore? Suddenly, they're the hottest thing in the classifieds! From Mustang’s twin-turbo V6 to the Honda Civic Si’s K20A, buyers are scrambling for these once-overlooked powertrains as regulations and supply shortages make them rare. Some are selling for way over original price, and even work-truck engines are getting collector love. If you’ve got one of these, you might be sitting on a goldmine! #Cars #BuyingCar #CarEnthusiast