Ya know what....I got it mixed up with a
Popular Science article about "Cheat Codes" for the BMW..
Interesting article though...
There's a cheat code in the software running the BMW M3's sequential manual gearbox (SMG): Press the right buttons in the right order and the car will launch you from a stop after revving the engine to 5,000 rpm. But don't look for a how-to in the owners' manual—this feature is undocumented, an inside joke of sorts.