The car is a 2006 Mercedes C55 with the naturally aspirated 5.4 liter V8. It was advertised at 362 hp and 376 lb/ft at the crank.
A mild tune was installed while on the dyno. This pull was made immediately afterwards with no adaptation time. Speed limiter was removed.
A 4th gear pull was started as low as possible to get a look at the full operating range.
It's a fun little car that makes for an enjoyable daily driver. While not as fast or powerful as the current crop of new muscle cars it has a light nimble feel those heavier cars can't touch.
A big thanks goes out to SpeedTek in Haltom City, TX for their cooperation.