During the production of the Model L, Lincoln did not adopt the common American automotive industry practice of yearly model changes. While the company had made minor revisions and upgrades to the model line to the chassis and powertrain, the body was largely left alone over its 10-year production. Lincoln found that customer interest was accommodated by the purchase of multiple Lincolns (or other luxury vehicles) in different body styles; as many Lincolns were custom-bodied from the factory or coachbuilt, yearly styling changes would not properly accommodate its customer base.