Infiniti launches its new 2003 G35 sports sedan with a big US advertising campaign that is part of the bigger effort to position Infiniti more effectively in North America as a premium brand. Nissan's luxury brand increased its US light vehicle sales by almost 20 percent to 5,912 units in 2001, but is still some way below the levels achieved by Lexus (22,203 sales in 2001) Acura (14,663 unit sales).