I have my eyes on the 2012 Audi A6, but I can't conscionably take the leap when my 2006/2007 Yaris just refuses to die!
I have 113K miles (7.5 years) and it's running like a champ.
Sure I can't beat all the Audis and the BMWs off the green light, but I can zip and zoom around everyone else, and only pay $26 every 5K miles for servicing.
No repairs whatsoever, other than new tires every 50K, and a belt change at mile 100K.
I have a feeling the little Yaris is going to hang on for another 7.5 years, but deep down I'm hoping that it won't because I'm itching to get into a nice car that doesn't "rattle" when traveling at 80 mph.