( http://www.TFLcar.com ) The new 2013 Lexus GS 350 F is taking direct aim at both the new Mercedes-Benz E350 and the new BMW 535i. We recently had a chance to drive all three cars on the race track in Las Vegas to compare how well  the newest and perhaps sexiest Lexus does against these two very well regarded and long established German luxury performance sedans. Check out this first drive review of the 2013  Lexus GS 350 F as we test all three cars head to head.