With a 0-to-60 time of 3.7 seconds and a top speed of 200 mph, it’s not much of a surprise that Motor Authority has nominated the 2016 Cadillac CTS-V for its annual Best Car to Buy award. Celebrity Rides: Check out James Gandolfini’s Cadillac Escalade that recently sold for $120,000 The 2016 Cadillac CTS-V sedan…