This mod has been downloaded from www.GTA-Modding.it

These tutorials may help you to install this mod:
http://www.gta-modding.it/modding/sa/install_veicoli1.php
http://www.gta-modding.it/modding/sa/install_veicoli2.php

This mod include a countach.ggm file that can install the car automatically. Use GGMM to do it.