If you bought or leased a new, qualified plug-in electric vehicle (EV) in 2022 or before, you may be eligible for a clean vehicle tax credit up to $7,500 under IRC 30D.
www.irs.gov
We may not have been eligible from the start given the deposit was much less than 5% of the purchase price. We'll see what the IRS allows. I plan to claim the credit but will be prepared to pay if the IRS deems me ineligible.
As for Q1 Mojave...the June 2023 delivery scenario is if they start assembling your car in March 2023 and take a full three months to deliver to you. At the rate they are making cars currently it's a reasonable guess your delivery will be earlier than that as long as you've already confirmed your options.