The first run is against an APR Stage III supercharged B7 RS4. The RS4 is stated to be in the low 600 wheel horsepower range. Keep in mind the 4.2 liter FSI V8 is running an Eaton TVS supercharger kit so it is no slouch. The race between the two cars is close but the TT-RS has the quicker elapsed time and also traps higher at 145.68 to 143.23 for the RS4.
The second run is against an HPF turbocharged E46 M3 with a 6-speed manual transmission. It is stated to be making over 600 wheel horsepower. The TT-RS makes fairly easy work of it running a 148.86 trap speed to the E46 M3 140.29.
Keep in mind comparing trap speeds in roll on races is difficult due to there not being a uniform starting speed. Regardless, the TT-RS with the APR Stage III kit performs impressively.