 The 13 T has six axles, and the low-floor area represents 48% of the entire vehicle floor.It is based on the Škoda 14 T. While 14 T has front door leading to driver's cabin only, in 13 T the front door leads to passenger compartment.The vehicles delivered from late 2010 differ from the preceding ones in array of passenger seats – while the initial trams have the seats in high-floor sections sideways to driving direction (so the passengers face each other with passage in between the lines of seats), the newer trams have the seats located in the driving direction.