rblfmr // ShutterstockFinding the right features: Car trims explainedCarMax partnered with car review experts from Edmunds to weigh in on what matters most when it comes to choosing a vehicle trim..What are car trim levels and why are they important? Lower trims have fewer, basic features, while higher trims have more plentiful, advanced ones, with several trim levels in between. Knowing these terms will increase your overall car knowledge and help you choose the right used car with the right set of features. Car Trim and Body TypeCar trim levels determine what features a car will have. PackagesLook for commonly bundled items to determine whether a used car you’re looking at has a certain package you’re interested in.