You can use it with vanilla settings. Only change is +ext_requi flag in vehicles.ide setting

vehicles.ide:
packer,		packer,		car,		PACKER,		PACKER,		VEH@TRUCK,	NULL,				10,	999,		0.3523,	0.3508,		0,	2,	1.5	,0,	noboot+big+ext_requi+avoidturns+ext_strong+ext_script+truckfirefx+truckexhaustfx+truckenginefx

