What are N400 sills? Some sort of side skirt or body kit? The wheels on this car look exactly like the split 5's on the db9 w the sport pack?? Same wheels I suppose?

 

The N400 sills are the extra flared out lower body panel that runs between the front and rear tires. It seems to have gotten to be a more popular option on the Vantages since the 10MY although I think it may have been available since 08. The wheels are what came with the Sport Pack option on both the V8V and the DB9 I believe.

 

Correct, when my V8V was upgraded to the sport pack, the split 5 spoke lightweight wheels came as part of the package. I like them MUCH better than the wheels that came standard.