It can help. But it depends on the type of woman you are targeting, and you have to be understated about it. (Most) women don't care to talk about your car, but they want you to have a nice one, as a demonstration of financial capacity and good taste. But, you need to know your market. An Audi may not impress a good 'ole country gal, who wants you to know which F-150 variant is the coolest, nor will it impress Lady Weston. But some typical middle class women would be, if not impressed, then at least relieved that you are driving a good car. Just don't talk about it - at all. If its going to make a difference at all, she only has to recognize it for what it is. If you talk about it, it will seem like it matters to you, like you are aware of its relative panache, and any potential points you would score by driving a nice car and acting like it is normal to drive a car like that, would be lost.
And some women won't care at all.
And some women won't care at all.