There are trailers for two auto-themed sequels on the IMDb homepage right now. Guess which one looks more tolerable.
They may both start with the same "futuristic text" sound, but Fast Five exudes far more action, heart, thrills, humor and charm (thanks to Luda and The Rock) than Cars 2. Cars 2 matches with almost as many guns/explosions and two unfortunately contrived potty gags.
Cars was a misstep for Pixar. Cars 2 looks like a wreck.