just signed loan docs and will get the keys on Thrusday

30 days

Yeah I would wait 30 days. You dont want to increase your Debt to Income Ratio.

I would buy the car on Friday.

You got the house - buy the car whenever you want - the house is yours. If you qualify for the car then theres nothing stopping you.

Enter your answer hereMake sure the car your are purchasing has a low enough payment so it does not impact you being able to make your mortgage payment. I would also recommend waiting 30 days or until after you make your first mortgage payment to complete the car purchase.

I would wait until you get the keys. Typically, Lenders have to repull credit the week of funding, so to insure that has been completed, i would wait until the keys.

Best answer...wait until you have the keys....which is after all is recorded..then you are good to go...obvious advise here is don't over spend...as you just took on a mortgage....