This is for people who want to make addon cars with hydraulics 

Just add this to carcols where suspension is.
        
       
          
        <Item>
          <identifier />
          <modifier value="20" />
          <audioApply value="1.000000" />
          <weight value="0" />
          <type>VMT_SUSPENSION</type>
        </Item>
        <Item>
			<identifier />
			<modifier value="25" />
			<audioApply value="1.000000" />
			<weight value="0" />
			<type>VMT_WHEELS_REAR_OR_HYDRAULICS</type>
		</Item>
		<Item>
			<identifier />
			<modifier value="50" />
			<audioApply value="1.000000" />
			<weight value="0" />
			<type>VMT_WHEELS_REAR_OR_HYDRAULICS</type>
		</Item>
		<Item>
			<identifier />
			<modifier value="75" />
			<audioApply value="1.000000" />
			<weight value="0" />
			<type>VMT_WHEELS_REAR_OR_HYDRAULICS</type>
		</Item>
		<Item>
			<identifier />
			<modifier value="100" />
			<audioApply value="1.000000" />
			<weight value="0" />
			<type>VMT_WHEELS_REAR_OR_HYDRAULICS</type>
	</Item>
      </statMods>
     