Great pics, Thirdeye.
A tip re. the NSX, Evo IV and Shelby pics: Determine where the light source is (sun, etc) and get your car in the right position - so it's 'lit up'. This has saved many dozens of my pics!
I love to play with shadows and lighting on cars and on the ground. Makes for some interesting photos sometimes.
Happy snapping!
[Edit: The lighting in NYC (PhotoTravel) is difficult to work around. Wish I could remember the best way to light things up there.]