Rod Stewart has had a lifetime of success as one of the best-selling artists in the world, which has afforded him quite a comfortable lifestyle in his later years. As he approaches his 80th birthday in January, Stewart is looking to offload some of his most prized possessions: his luxury Italian sports cars. On Nov. 13, the British hitmaker took to Instagram to showcase his collection of swanky sports cars, including some shiny Lamborghinis and Ferraris, and share a disappointing updat...