Modernized four-axle Bdtee276 car was built up by the Btme coaches transformation which were produced in Vagonka Studenka within 1986- 1987. The modernized coach has two high- capacity bodies provided totally with 80 seats separated by a wall in the middle of the car equipped with a door.
Furnishing with new dual seats, the car is refurbished to passenger comfort and operation safety increase. The original wrapping boarding door are replaced by a pre-sliding door with electropneumatic gear. Reaching maximum speed increase to 140 km/h by construction changes (new brake units, vertical shock-absorbers, wheelsets bracket line) on the GP 200 bogies.