Best first step hete is to put together a target deal based on market supported discounts andnthe programs ad they apply to your situation on a new vehicle so you have a baseline to compare against.
What is the % off MSRP? That is the real question. Ask for whatever % people are getting for a “good” deal on an XC60 and go for another 5% for the loaner.
Avoid putting money down as it is lost if anything happens to the car. I assume your goal was a $500/month payment.
All the recent SIGNED deals are for the full electric C40s and they are paying about the same or less. Might be a good option depending on your situation.
If this is accurate, there are brokers here advertising 10% on new inventory and some have advertised 14% on loaners recently. You could probably do better than this.