Most of the regional services are given by DMU (Diesel Multiple Unit) sets in Turkey.
DMU sets have 2+2 seats.
In TCDD’s fleet, in addition to Fiat DMUs manufactured in 90s, there are 2-car, 3-car and 4-car Rotem DMUs manufactured in 2000s.
In Rotem DMUs, each car has 66 seats. Thus 2-car DMUs have 132, 3-car sets have 198 and 4-car sets have 264 seats. Each car has one WC. In 3-car and 4-car sets, there is special space and WC for wheelchairs.
The Rotem sets have a speed upto 140 km/h and electric plugs next to seats.