The claim has been litigated many times since then, but it is finally being put to the test in a new video.
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They used a complete donor drivetrain from a G82 M4 xDrive.
While unconfirmed by Volkswagen, speculation suggests this could be the Edition 50.
It is also available with 23-inch wheels for the first time.
A portion of the proceeds, estimated to fetch between $50,000-$60,000, will benefit UNICEF.
The Speirling was reportedly limited to 80% of its potential power and downforce.
Spy shots also reveal a comprehensive visual makeover compared to the DB12.
It is the fastest car with a production car chassis to conquer the Green Hell.
The choice between these titans boils down to individual preference (and bank account).
Unlike the road car, however, this version ditches the passenger seats altogether.