I last saw it at Unicat in Dettenheim in summer 2006. Judging from the paint job it has been renovated by Unicat since, which was the plan. It was looking a bit rough 2 years ago.
If I am correct then everything has been "gone through".
It evidently has a Claas overdrive which is a good thing since it probably has 6.94 gears, even with the 14.00R20s. With the OD top speed at 2600 rpm would be ~62 mph.
It is one of the few horizontal slide-outs Unicat has built.