Experiment.. The 2013 edition of the X1 Carbon came pretty close to a rating of "very good". Still, Lenovo hasn't stopped improving its premium ultrabook series, adding a WQHD IPS panel to the 13-inch device while also improving its battery life and implementing new input devices / ports. Is this enough to eradicate the few remaining issues?
http://www.notebookcheck.net/Review-Lenovo-ThinkPad-X1-Carbon-Touch-20A8-003UGE-Ultrabook.111817.0.html