The older models had simple sensors that you could wire together to bypass. The E70 has a two-step sensor that, AFAIK, there's no way around having to replace the sensor. There are aftermarket sensors available that seem to work fine for much less than BMW ones.

AM.

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E70 2010 3.0 M57 AT Titanium Silver with Black Leather
E53 2004 3.0 M54 AT Toledo Blue with Gray Leather
E83 2008 3.0 N52 AT Silver Gray Metallic with Black Vinyl
E46 1999 2.8 M52TU 5MT Black with Tan Leather 250K+ miles (Sold, but not forgotten)