Dinan Cars designs and manufactures aftermarket performance parts for BMW and MINI automobiles. The company was founded in 1979 by Steve Dinan and is headquartered in Morgan Hill, California.
Its parts are marketed through a network of authorized BMW dealers and independent auto repair shops. The company has a long-standing arrangement with the BMW dealers allowing Dinan-modified vehicles to retain factory warranty coverage and even qualify for BMW's Certified Pre Owned program - something often lost when vehicles receive aftermarket modifications.
Dinan’s comprehensive warranty program, introduced in 1996 with the cooperation of BMW of North America, provides BMW owners with matching coverage to that offered by BMW’s new car warranty, ensuring that Dinan performance enhancements and the BMW they have been installed in are covered for up to 4 years or 50,000 miles. BMW automobiles can now be performance-tuned without the associated concern of negatively affecting the new car warranty coverage, making the idea of enhanced driving fun and excitement appealing to a rapidly growing number of BMW drivers.
Dinan also builds BMW racing engines for teams competing in the Grand-Am Rolex Sports Car Series Daytona Prototype class.