(February 2, 2015) IRVINE, Calif. — The Lexus RC 350 increased 1,820 percent in new-car searches on KBB.com, the most of any advertised model during Super Bowl XLIX, according to Kelley Blue Book kbb.com. Several other luxury models, including the BMW i3 and Mercedes-Benz AMG GT, helped round out the top three models with the largest percent increases on KBB.com, gaining 1,131 percent and 950 percent respectively.