Marker hit by vehicle???

[SirniNamaz]

how can i make marker that can only be hit by vehicle (not player on foot)

[AMARANT]

local myMarker=createMarker(1200,-1400,13,"cylinder",3,255,0,0,125) 
  
function VehicleHit(hitElement,matchingDimension) 
if getElementType(hitElement)=="vehicle" then 
outputChatBox(getVehicleName(hitElement).." hit my marker!",getRootElement(),255,0,0) 
end 
end 
addEventHandler("onMarkerHit",myMarker,VehicleHit)