You can tell your wife slowly, bring the car over, and when relatives or something come, they will also say how good the daughter-in-law's dowry is and have a car. Don't get me wrong, your wife, she won't let you drive for three days, maybe for a reason. We have a custom here that driving is not allowed before marriage 1 week. Don't worry, your wife won't hurt herself. That's all for the time being. Finally, good luck.