( http://www.TFLcar.com ) The all new 2014 Lexus IS250 and IS350 are very sport 4-door sedans that compete directly against the BMW 3-Series. Both the 2014 Lexus IS250 and IS350 feature 6 cylinder engines that love to rev. The IS250 has less power than the IS350 but it also weights less. The sharpest of the Lexus IS family is the F Sport. Of course at TFLcar we want to know how more about the performance of the new Lexus IS. That's why we decided to test three different IS models on an oval race track to see how fast they can go around the track and how they handle the turns. In another fun, accurate and informative TFLcar video we put the new 2014 Lexus IS 250 & IS350 F Sport to the TFL Thunder Lap test.