Hey
stebbinnThanks for getting in touch and for all the detail! Now firstly, good luck on the GMAT! I'd love to see you break 700 to give yourself your best shot. Also, to your point, your Quant is low. You may want to consider targeted private tutoring to get this up. Right now, I think that might put UNC and Ross in the reach group for you because your background is also a little non-traditional. (There's nothing to do to change that at this stage so with your dealership work, just make sure you are very clear about the size/scale of the team you manage and what your business impact is. I bet you are dealing with big dollar amounts!)
In terms of weaknesses, not having a clear vision for your career could slow you down. Schools like to know you've given this some thought and that they can help you. Take a look at the employment reports for all the programs you are targeting. See who is hiring. See who you get excited about. That will help you decide what you want to do.
I like Notre Dame for you and think you might have a shot. Average GMAT 683 and 40+% admit rate...it could work for you. I still want you to try to nail that GMAT to make the process easier, but I think you have a decent shot. (I'm guessing your previous work for ND can help you explain "Why ND" too.) Owen might be a bit tougher if you can't break 700.
Once you have your real GMAT score, follow up on this post and we can chat more!
Hope that helps and all the best for your applications!
Krista