The 2010 Lexus Lexus RX 350 IS is a sleek, low-production car that was first launched in 2009. The Lexus RX 350 IS is a sporty, low-production car that was first launched in 2009. That's because the Lexus RX 350 IS is a sporty, low-production car that was first launched in 2009. It's a car…