Due to the higher emission standards in Europe, AC Schnitzer decided to not sell it in Germany. Source here (only german):

www.autobild.de/artikel/ac-schnitzer-x6-m-falcon-sport-gegen-manhart-m6-xr-1290357.html

Mieguy wrote
Is this the same car? The article states it has 650hp, the one on this page has 272 or 310hp.

The arcticle talks about the M version, but the rule seems to apply for both versions.

Despite that, i think we could give the M version an extra page because of visual differences. Full name is AC Schnitzer X6 M Falcon Sport