It's entitled the Mercedes CLK63 AMG "Black Widow," but despite its ominous name, Vorsteiner's tuning program is anything but.

In total, Vorsteiner's tuning program consists of two elements: a bolt-on front spoiler, and a bolt-on rear spoiler. Both, they claim, have been "found to drastically improve down force & aerodynamics during high speed tests at the track over 321km/h (200mph)." But in all honesty, does one really think that a $140,000 CLK finely tuned by AMG isn't already more than adept at navigating a high speed track? Of course it is, and that's why Vorsteiner's Black Widow is an exercise in futility.

http://emercedesbenz.com/Sep08/22_00...ack_Widow.html