The best option to transport a bike with your 2016 Lexus GSF is going to be to install a roof rack and attach a bike rack. The trunk mounted ones like item # SA805BL have mixed results and won't work with cars with spoilers. It doesn't look like your Lexus has any rails so to add a roof rack you will need the following parts:
Yakima JetStream Crossbars - Aluminum - Black - 50" Long - Qty 2 item # Y00425
BaseLine Towers for Yakima Crossbars - Naked Roofs - Qty 4 item # Y28TR
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