to the unit support frame 44 that is fastened to the side frames 64 64 if a rear portion of the power control unit 30 and the rear support frame 60 were fastened to each other by bolts b then a space for tightening the bolts would be required behind the power control unit 30 therefore when the unit support frame 44 is fastened to the side frames 64 64 the unit support frame 44 has to be brought forward by the aforementioned space resulting in the power control unit 30 being installed in a forward position on the other hand according to the present embodiment the power control unit 30 is supported by the support frames other than the rear support frame 60 such that the rear support frame 60 and the power control unit 30 are not fastened to each other consequently the power control unit 30 is positioned as rearwardly as possible thereby reducing adverse effects that shocks produced in the event of a collision exert on the power control unit 30 in other words since the power control unit 30 is positioned as rearwardly as possible the vehicle body 12 has an increased crushable zone see fig2 thereby reducing adverse effects that shocks produced in the event of a collision have on the power control unit 30 and hence protecting the power control.