You already got negged for trying to sell your LBTC account before, don't make this loan request turn into account selling.
Besides, your LBTC account does not worth 1 BTC.

Since this is physical collateral, are you willing to send your car along with its documents to a trusted escrow to be inspected fully?
Then again, collateral as big as a car isn't worth it because if you defaulted the loan the car will need to be sold to cover lender's loss.
Go to the bank or financial institution for using collateral this big.