Meet Our Skilled Team

Decades of hands-on experience and formal training support every exceptional vehicle we service.

Experience Built Through Generations

At Auto Turismo Sport, expertise comes from years of hands-on experience, formal training, and a lifelong passion for exceptional automobiles. Our team understands that special cars require more than technical ability—they require care, precision, and respect.

Meet Our Team

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Steve Mastroianni

Owner and Specialist Technician

You’ve heard the expression chip off the old block. Used here, it refers to Steve channeling his best friend and father, John Sr.

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We could go on and on about Steve’s training, but we would be repeating the same thing over and over again. Steve learned by doing. And by doing so, we mean that as a young teen, he helped his dad keep the family cars going.

Sounds ordinary until you know what the family cars were. Dad’s daily driver of choice might be a ’48 Maserati A6G 1500 or a Bizzarrini. Mom had to make do with a Cord Sedan or some exotic Mercedes.

Steve and his brother John raced the family Ferrari GTO or Steve’s favorite, a Lotus 23. Steve has pretty much seen it all.

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Sean Sheridan

Engineer and Ferrari Engine Specialist

After years in the bicycle industry working at a carbon fiber wheel manufacturer, Sean decided to pursue his love of all things Ferrari.

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An engineer and designer, Sean worked at another shop for 12 years, honing his skill by building bulletproof engines for all kinds of Ferraris, important race cars, and exotics like OSCAs and Cosworths.

With 10 years of mechanical design and engineering experience, nothing scares Sean or taxes his enormous talent.

Sean has two lovely daughters and, in his free time, maintains his status as a champion senior cyclist and accomplished jazz guitarist.

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Dan Guedes

Technician and Modern Performance Specialist

Dan is our enormously talented protégé. Protégé is an uncommon term to use for a technician, but it works here.

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Dan had formal training where he acquired an understanding of the science and technology that go into modern, highly sophisticated automobiles.

Dan came to Auto Turismo Sport 12 years ago and has been working side by side with Steve Mastroianni, learning much like Steve did—from the master.

Dan jokes that one of his first supervised projects was building a Ferrari Daytona motor with Steve by his side.

In his free time, Dan enjoys playing with his impressive stable of really quick cars, including an Audi S4 that belches fire.

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Michael Maddalena

Sales and Acquisitions Specialist

Michael returns to the Auto Turismo Sport team after a few years' hiatus.

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During that time away, Michael gained experience and knowledge from one of the foremost experts in pre- and post-war vintage automobiles.

In his new responsibility, Michael will lead ATS in sales and acquisitions.

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Milo

Shop Dog and Official Greeter

Milo is a rescue and not yet 7 years of age. He has an uncanny ability to stay away from moving cars.

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His favorite times of the day are lunch, the ice cream truck, and the UPS driver’s thoughtful treats.

A Team You Can Trust With Your Car

From generations of automotive knowledge to modern engineering expertise, the Auto Turismo Sport team brings experience, passion, and personal attention to every vehicle that enters the shop.