A shot of Y-32 bogie of the TVS2000 type luxury coach of
TCDD. The bogie is the same as the bogies on which SNCF
Corail coaches ride, and it is the key feature of TVS2000's.
Because it provides very good comfort on the low quality
TCDD lines. Normally, the maximum speed of this
bogie is 200 km/h, however the car has a Vmax of 160 km/h.
The guess is that the lack of reinforced braking and 
wheel slip control system causes this difference. I think
retrofit is feasible.
Photo by Gökçe Aydın (elbe80@yahoo.com)