Lehmann-Peterson Corporation is a certified Cadillac Master Coachbuilder.  The corporate office is located in Arlington Heights, Illinois and our 80,000 square foot “state of the art” manufacturing facility is located in Rolling Meadows, Illinois.

All processes required to transform the Cadillac XTS into the Cadillac "XTS-L Long Door Sedan" are completed in–house, under one roof by Lehmann-Peterson at our manufacturing facility. Our conversion/modification processes are inspected annually by Cadillac Motors, a division of General Motors Company. The purpose of these annual inspections is to ensure that we maintain Cadillac's original equipment manufacturer (OEM) design. In order to achieve this, our manufacturing facility is outfitted with much of the same equipment and processes utilized by Cadillac's manufacturing plant. Our facility's production line was designed to effectively and efficiently perform the construction required to maintain Cadillac's precision engineering and luxury features, while following Cadillac Master Coachbuilder guidelines.

The XTS-L extended sedan chassis is engineered for the rigors of the chauffeured transportation industry. Solid steel construction is used when extending the chassis. Once the frame work is completed, the vehicle is prepared to be completely repainted by our in-house state-of-the-art automotive paint facility. 

Historically, Cadillac automobiles have always been the luxury icon within the United States of America. Since their birth, Cadillac has aimed to achieve precision engineering and stylish luxury finishes. Lehmann-Peterson has been in the business of master coach-building since 1967 and is perhaps the most experienced Master Coachbuilder available to dealerships and private owners which seek to convert or modify the Cadillac XTS into a "Cadillac XTS-L Extended Sedan".