The best option for these exact words in a domain name would be NewAuto.com There are three things that I see that really hurt your domain name. 1. The words are in the wrong order 2. The domain name is in the .net extension 3. The domain name contains a hyphen The combination of those three thing makes this name worth only the registration fee. Of course, that is just my opinion and I do wish you the best of luck with your name.