Call me a skeptic.. but I have a serious doubt about it's ability to accelerate from 120 kts to 600 kts in 5.6 seconds. That's a hellacious energy increase in a VERY short period of time. The official Eurofighter website at http://www.eurofighter.com claims 200kts to Mach 1 acceleration to be 30 seconds.

Having seen both the YF-22 and YF-23 doing supersonic test runs in the supersonic corridor northeast of Nellis AFB in the early 1990's during the ATF fly-off, I can tell you for a fact that nothing has even come close to their acceleration rates.