Elon cannot legally give, donate or loan funds to a UK political party, per the electoral commision:
Tesla Motors Limited could, as that is "
a UK-registered company which is incorporated in the UK and carries on business in the UK".
Tesla Motors Limited is 75% owned by Tesla Inc., of which Musk is CEO and the largest shareholder (around 22%).
So Musk
himself cannot donate or loan money to Reform UK Ltd. A controlled by a company Musk controls could.
Farage, being the dummy he is, keeps honking about how much
Elon supports Reform, not that Tesla Motors Ltd. supports Reform UK Ltd.
How much money does Tesla Motors Ltd. have available to gift/loan to political parties?
ETA: also, he (Noel) can't get round this by donating to/setting up a PAC, as we don't have those.