2011 Mazda 3 or 2017 Nissan versa?

Having 100 days from delivery gives you ample opportunity to have an experienced auto repair shop you trust do a post-purchase inspection. This will tell you if there is anything wrong. If you will return it anyway don’t spend the money of course, but this inspection will make sure you have a decent 11 year old car. Expect to spend $150 for this service and make sure you know what they will do for the price. You want all systems checked and a full visual inspection on a lift.