Might be some via the government
I found this from another post:
John Bendit from Upscale Automotive commented:.......... Unfortunately, MB will no longer allow Oberaigner to sell us the conversion kit. This is the same scenario that happened with Sportsmobile and Oberaigner. Mercedes/Daimler...
Remember, ford planned to phase out the the rear wheel drive mustang. The replacement was going to the car which became the probe. Now that nissan is selling a fullsize van, they could reevaluate their decision. I saw a nissan van, and from a distance, it looked like something from ford...