What class was the car being tested for? It wasn't Factory Stock because of the supercharger. The same for Pure Street, no power adders allowed. Real Street doesn't allow intercoolers, which I believe I saw on the car, unless they changed the rules for 2006. Even if they did, a 10.00 isn't setting the world on fire since Real Street is in the mid 9's now. It wasn't fast enough for Renegade or Drag Radial, and I'm not going to mention Super Street Outlaw or Pro 5.0 either. I believe the last run was when he added the nitrous to the combination which then made it a dual power adder which isn't allowed in any class. It would be interesting to find out what record he set.
Unless it was some kind of record for a stock drivetrain in an 05 Mustang with a power adder.