Unveiled just before press time, the 2013 Lexus GS 350 sport sedan shows a big change in attitude with its aggressive new front grille. The GS is powered by a 3.5-litre V6. At 306 horsepower, it is one of the most powerful base engines in the segment, as well as the only one with both direct and sequential injection. It propels the GS from zero to 100 km/h in 5.7 seconds and reaches a top speed of 229 km/h. The transmission incorporates many features adopted from the Lexus IS F high-performance sedan such as faster shifts, earlier torque lockup and downshift throttle blips. Choose from four driving modes: Normal, Eco, Sport and Sport S. In addition, a hybrid model and F Sport versions will be launched later in 2012. Pricing and fuel economy to be announced, but expected to be in the $50,000 range.