NOVELTY - The vehicle (100) has an internal combustion engine and an exhaust-heat recovery apparatus (3) that are connected to each other. A cooling water circulation hose is provided to make exhaust-heat recovery apparatus to circulate through a cooling water (R) of internal combustion engine. An external air introduction surface of a condenser (33) is inclined upward, and is positioned while the exhaust-heat recovery apparatus installs the components of condenser comprising the exhaust-heat recovery apparatus in a roof (1R) of a cab (1) toward a rear portion of vehicle.    USE - Vehicle.    ADVANTAGE - The external air introduction surface of a condenser is inclined upward, and is positioned while the exhaust-heat recovery apparatus installs the components of condenser comprising the exhaust-heat recovery apparatus in a roof of cab toward a rear portion of vehicle to make the heat exchange amount of cooling water and working fluid of exhaust-heat recovery apparatus to increase for the energy to recover exhaust-heat recovery apparatuses so that the airflow raises along vehicle forward in the roof portion of cab, the front surface of cab suppresses the production of disorder of airflow, and reduces the running resistance of vehicle and the output of exhaust-heat recovery apparatus is large and the heat exchange area of condenser is large so as to perform efficient energy recovery by installing the condenser in the roof of cab to install condenser with large heat exchange area. Thus, the efficiency of recovering exhaust-heat recovery energy is improved effectively. Hence, the cost of vehicle with easy exhaust-heat recovery apparatus is reduced effectively. The heat energies contained in the cooling water of internal combustion engine by the exhaust-heat recovery apparatus are collected as an electrical energy and the electric power consumed by vehicle is covered by accumulating the collected electrical energy in battery, and the load of internal combustion engine is reduced by decreasing the drive of the alternator driven with the internal combustion engine. Thus, the driving fuel-consumption of vehicle is improved. Since the traveling airflow is easily passed to the condenser, the reduction or stop of electric cooling fan of drive put side by side to the condenser is attained. Thus, the fuel-efficient effect is acquired effectively.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of the vehicle with the condenser positioned to the cab roof.    Cab (1)    Roof of cab (1R)    Exhaust-heat recovery apparatus (3)    Condenser (33)    Vehicle (100)    Cooling water (R)