Lexus announced today that it will hold the world debut of the 2010 Lexus RX 350 and 2010 Lexus RX 450h SUVs at the 2008 LA Auto Show. The Japanese luxury brand said that the next generation RX models will raise the bar above the current best-selling products by offering outstanding luxury, comfort, technology, safety and efficiency.As announced earlier this morning the 2010 Lexus IS 250C will make its stateside debut in LA. Lexus has now confirmed that the IS 350C will also make its world debut joining the IS convertible lineup. The 2010 Lexus IS 350C will be powered by a 3.5L V6 engine producing 306-hp. Both IS convertible models will be mated to a 6-speed automatic. The IS 250C will be available with a 6-speed manual.The 2009 Lexus LS460 and LS 460 AWD will also be at the Lexus display. Join us for live coverage of the 2008 LA Auto Show starting Nov. 19th.Follow the jump for the high-resolution image gallery.2010 Lexus IS 250C:????Tags: 2008 LA Auto Show, , 2010 Lexus IS 250C, , 2010 Lexus RX, , 2010 Lexus RX 450h,