全新的XK轿车将会为你在卓越的驾驶性能与舒适感之间提供一种平衡，而这也正是那些做工精细的运动型豪华轿车所应具备的基本品质”。
The all-new XK will deliver a balance of superb driving dynamics and comfort that is the epitome of sophisticated sporting luxury."


link:
http://www.test99.com/pages/2005829135446.html

驾驶动力学is another translation on internet ,but it can not express the true mean I think.So I don't think it's a good answer.

e.g.
And although driving dynamics aren't the highest on its list of priorities - it's less fun than a 3-Series Cabriolet - the A4 is, at least, comfortable and refined at any speed, hood up or down.
驾驶动力学并不是这款车最优先考虑的，宝马3系敞篷车驾驶起来更有乐趣。而A4，至少在任何时速下、无论是加速还是减速的时候都很舒适和优秀。

link:
http://www.myfocus.cn/bbs/read.php?fid=2&tid=1351&page=2
link