market warranty is significantly more. Having bought an RS6 one year old and still really upside down with depreciation i would take an RS with the lowest miles and lowest initial cost period. You buy an 08 even discounted it will be worth 10K less in no time. The 07 you will be holding closer to the actual resale value as it continues to depreciate. The red is gorgeous.

2003 RS6 Daytona Gray, Silver Interior
RNSE
RS6 logo matts (waste of $$$)
RS6+ OEM 19" Titanium 5 spokes(summer)
RS6+ Dead Pedal
Stuck with it forever-depreciation rocks!
Go Gators
Future
R8 Phantom Black/Silver or Ibis- In longggg line
Former
2000 TT Coupe Neiman Marcus #25/100
2001 BMW X5
1994 Audi Cabriolet