One key change for the 2013 iteration is Lexus’ desire to kick up the performance a notch. The company has introduced a thrill-seeking variant called the LS F Sport. Similar in theory to the smaller GS F Sport, this version adds to the LS items like an adjustable air suspension that’s 10 millimeters lower, a Torsen limited-slip differential, Brembo front-brake calipers, a mesh grille, 19-inch BBS alloy wheels (David Undercoffler / Los Angeles Times)