First, I'd never spoil a kid like that no matter how wealthy I was.
A kid doesn't get that bad unless they've not been taught boundaries from the age of 18 months. Or something has been seriously wrong, like absentee and workaholic parents.
But let's say it went as you describe.
You don't say how old she is, but let's say she's 17, still at school and old enough to have got her license at a driving school.
First I'd ask her to get the car repaired and customised to her satisfaction using the allowance she'd been given. And her allowance would be cancelled until she'd done that job within whatever money she had left over from the most recent remittance.
Second, I'd give her a much lower allowance - just enough to buy her own clothes (off-the-shelf, no fancy designers) and learn how to work within a budget. She'd have to keep all the receipts and show me her books each month in order to keep receiving the allowance. For anything extra, she'd have to save or get a job.
If she refused to repair the car, I'd cut off all allowance, take her out of her present school and put her at a strict convent boarding school with a 16" foot high stone wall around it, guards and no way out.
(I'm an atheist who would normally never send a kid to a religious school.)
Actually, I had a friend at my school who was expelled. Her parents put her in a convent like the one I described. There was no television, no media, nothing to do except study. When we re-met and became friends again, years later, she said it saved her life. It gave her time to mature a bit without the temptations of rebellion. She passed her HSC with high marks, studied art and ceramics, and went on to become one of the Australia's top ceramic sculptors. She now teaches ceramics at university level.
