Here are my son's scores for the SAT he took January 2007 as an eleven year old sixth grader:
Reading - 600
Math - 680
Writing - 590
No practicing before the test other than reading the info booklet.
I understand that this opens him a way to every summer/distant ed program offered in the US. Other than that, I can't compare it (heard about a sixth grader though who got a perfect 800 in math last year).
Would you care to share your kid's scores?
Ania