500 MADNESS is the original home for FIAT enthusiasts. This is a place built by passionate owners, dedicated to helping fellow enthusiasts customize, enhance, and maintain their favorite Italian machines.
As part of the MADNESS Autoworks family, 500 MADNESS was created out of a deep passion for the FIAT brand and the unique personality these vehicles bring to the road.
We are a privately owned company, built by enthusiasts, for enthusiasts. Unlike large corporate conglomerates that often view niche automotive brands as just another market segment or commodity, FIATS are a part of our daily lives. We own them, drive them, maintain them, modify them, and push them to their limits. This is not just business for us, it’s personal. That hands on ownership and real-world experience gives us a level of understanding and passion that simply cannot be replicated by larger companies that may not share the same connection to these cars.
Because we live the FIAT lifestyle ourselves, we understand what matters most to fellow owners is quality products, honest advice, real support, and solutions that actually work. When you contact us, you are dealing with people who truly know and love these vehicles, not just salespeople reading from a catalog.
For over a decade, our Texas headquarters has served as the heart of our operations. Located in the Austin area, this flagship facility combines our primary warehouse with a full service workshop where our experienced team installs everything from performance exhaust systems and suspension upgrades to engine performance enhancements, custom wheels, audio systems, carbon fiber styling, digital upgrades, and complete turnkey builds. This is where ideas become reality and where some of our most exciting custom FIAT builds come to life.
Our California location serves as a dedicated shipping and receiving center and a small installation and service facility run by a highly skilled and dedicated staff, where every team member has been with us for over 15 years. The California location is open by appointment only and is not open to the general public.
At 500 MADNESS, our mission has always been simple: provide the best products, expert installation, and personalized service at fair prices. We treat every customer like family and every project like it is our own.
We proudly ship products worldwide on a daily basis and support FIAT owners across the globe through phone, email, and in person assistance.
Beyond parts and installations, our custom builds have earned national recognition and have been featured on major automotive television networks including Speed TV, Netflix, Velocity Channel, Discovery Channel, and MAVTV, as well as shows like My Ride Rules, West Coast Customs, Car Fix, and the Optima Ultimate Street Car Challenge. Our team has also built vehicles for TV productions, major car shows, movie projects, commercials, and promotional campaigns for major brands.
At 500 MADNESS, we don’t just sell parts, we live the FIAT lifestyle. Whether you’re looking for a simple upgrade, a full custom build, or expert service, we’re here to help make your FIAT truly yours.