No contest. Black Series. Do research on it's automatic transmission. It was specially engineered specifically for this application. The car is an absolute BEAST.
The RS5, obviously based on the A5, is just far too large. Even w/ the RS treatment, it'll still be too big (think RS6).
The Aston is sex, but relatively speaking, especially in your area, too common.
You may pass other CLK's, but you will NEVER see another Black Series on the road, not to mention that unlike the other cars you're considering, the AMG will actually appreciate in value because of its hyper-rarity. Do it.
