Hello Isn, thanks for reaching out. The Curt Trailer Hitch Receiver # C11389 will for the 2020 Lexus IS 300h, but this is specifically designed for North American market vehicles. The UK model SHOULD be the same as far as hitch fitment, but this is not something we have ever tested since we do not ever see UK model vehicles here.
I have included a link to the manufacturer instructions for you. I suggest you compare the underside of your Lexus to the diagrams in the instructions. As long... view full answer...
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