You can never go wrong with a Continental GT. It has both class and aggressiveness. This car conveys "I am a gentleman, but not one to be toyed with". Both needed qualities in a serious negotiation.
The Jaguar XJ is a great ride to pull up to an important meeting in. I'm not really a Jaguar guy, but I love this 2012 model. Not to mention, James Bond drives it.
The new 2012 Mercedes-Benz CLS63 AMG is something perfect to hop out of wearing a tailored made suit (or tuxedo for that matter). This is definitely a power car for a power exec. This car is great for doing lunch with Wall Street Barons and/or taking the wife to see La Bohème.
What car would you want to drive to a game changing meeting and why?