One of the things I love most about these 10K posts is the breadth of selections and ideas that I dream up to try to pull together. Today’s thought was about practical performance – what’s the most your can buy for $10,000? As a result, we have quite a diverse selection to make it through today, ranging from a 2.0 TDi gas sipper through a 5.5 liter, twin-turbocharged V12 torque monster. In their respective ways, each is a great car (at least, in premise) and probably defines its category. What’s your favorite of this group?