Car DataStore/DataSave not saving?

Hello. I have been trying so hard to get this script working but so far not good. I am trying to save bool values in a folder in the player to see if the player own the car or not. Here is the script:

local dataStoreService = game:GetService("DataStoreService"):GetDataStore("CarDataStore")
local prefix = 'usr_'

game.Players.PlayerAdded:Connect(function(plr)
    local key = prefix..plr.userId
    local CamaroOwned = Instance.new('BoolValue',plr)
    CamaroOwned.Name = "CamaroSSOwned"
    local LamOwned = Instance.new('BoolValue',plr)
    LamOwned.Name = "LamborghiniOwned"

    local getSavedData = dataStoreService:GetAsync(key)
    for i, v in pairs(getSavedData) do print(i, v) end
    if getSavedData then
        CamaroOwned.Value = getSavedData[1]
        LamOwned.Value = getSavedData[2]
    else
        local saving = {CamaroOwned.Value, LamOwned.Value}
        dataStoreService:SetAsync(key,saving)
    end
end)

game.Players.PlayerRemoving:Connect(function(plr)
    local key = prefix..plr.userId
    local save = {plr.CamaroSSOwned.Value, plr.LamborghiniOwned.Value}
    for i, v in pairs(save) do print(i, v) end
    dataStoreService:SetAsync(key,save)
end)

nothing saves in the script when i go onto another server so it just does not save. I have been trying for months now. I am trying to make a one time purchase car system. Please give me a descriptive and helpful awnser! Please help!