Wrench Nation

Mecum Auctions Coming to Glendale: Inside the Collector Car Market with David Purvis We recently welcomed special guest David Purvis to the show to talk about the excitement surrounding the upcoming Mecum Glendale 2026 event coming to Glendale. David’s passion for collector cars began early, attending classic car auctions with his father—who was a regular participant at Mecum Auctions dating back to its second-ever sale. That lifelong connection to the hobby eventually led David to join Mecum in 2010, where he began working at the fast-paced “Bid Goes On®” desk, gaining firsthand experience in the energy and excitement of live collector car auctions. In 2011, David moved into a full-time role as a consignment agent, quickly becoming a trusted advisor for collectors looking to buy or sell vehicles at auction. His dedication and leadership earned him a promotion to Director of Consignment in 2023. Today, David oversees Mecum’s team of consignment agents within the classic and collector car division, working alongside Frank Mecum. Over the years, he has built strong relationships with collectors by focusing on trust, transparency, and delivering successful auction results. Beyond vehicles, David has also helped bring several significant Road Art® collections to auction, assisting consignors in showcasing and selling rare automotive memorabilia. During our conversation, David also shared insights into what collectors and enthusiasts can expect at the upcoming Glendale auction—from standout consignments to tips for buyers and sellers looking to participate in one of the most exciting collector car events in the Southwest.

On this episode of WrenchNation, we welcome Dino Crescentini — widely known in the industry as the Godfather of Brakes and a leader at Dynamic Friction Company (DFC). Dino explains the fundamentals of brake pad materials in a way that both technicians and enthusiasts can easily understand. In this episode, we break down the real differences between ceramic, semi-metallic, and organic brake pads—and what those differences mean for safety, performance, noise, heat management, and durability. We also discuss how these choices impact the level of service to the consumer in today’s shop environment, along with the latest legislation that removed copper from brake pads and how that change is affecting modern braking performance.

Shop Smarter: Your Guide to Buying Used Cars Online In this episode, we dive into smart consumer tips for buying used cars online — and what the launch of Amazon Autos means for everyday buyers. Joining us is special guest Justin Fischer of CarEdge, who brings expert insight into pricing transparency, dealer tactics, online buying risks, and how consumers can protect themselves in today’s digital car marketplace. From vehicle history reports and hidden fees to return policies and financing traps, we break down what to look for — and what to avoid — before clicking “buy.” If you’re considering purchasing your next used car online, this episode will help you shop smarter and buy with confidence.

If your car feels different—but the dashboard is quiet—you’re not crazy. Modern vehicles don’t always warn you when something’s wrong, and in this episode of WrenchNation, we break down why that happens and what drivers should know. We’ll explain how today’s cars are designed to tolerate small changes without triggering warning lights—and why drivers often feel issues long before a computer decides it’s a “problem.” We’ll talk about common signs your vehicle may be developing an issue even with no lights on, including changes in how it accelerates, idles, steers, brakes, or shifts. Covering the latest news regarding recent HONDA announcement of logo change and more !

This week on Wrench Nation, we welcome motorsports broadcaster and automotive storyteller Rick DeBruhl, representing the incredible Martin Auto Museum. From rare classics to iconic race machines, the Martin Auto Museum isn’t just about chrome and horsepower—it’s about preserving history, inspiring the next generation, and celebrating the stories behind the sheet metal. Rick takes us behind the scenes with museum favorites, upcoming events, and why this destination is a true gem for car culture !

Ever try to save a few bucks by wrenching on your own ride, only to end up with a driveway disaster? From stripped bolts to mystery leaks, we’re diving into the most common DIY car repairs that can go sideways — and the small but vital steps that often get overlooked.

This week on WrenchNation, we’re joined by Trucker Tim — a seasoned long-hauler who’s witnessed it all: the grit, the grind, and the growing dangers inside today’s trucking world. America’s economy rolls on eighteen wheels, but what happens when those wheels start coming off?From illegal labor to shady maintenance shortcuts and companies cutting corners just to survive — the cracks are widening.This isn’t just a trucking crisis. It’s a road-safety wake-up call for every driver out there.

Few people have done more to put the automotive world on the global stage than Tom Gattuso. As Vice President of Events for SEMA, Tom is the driving force behind the legendary SEMA Show in Las Vegas — one of the most influential automotive trade events on the planet. Blending marketing expertise, sharp strategic planning, and a lifelong passion for all things automotive, Tom has elevated the SEMA Show into a must-attend gathering for industry pros, builders, and enthusiasts worldwide. Under his leadership, the event has grown far beyond a product showcase to become an immersive celebration of car culture and innovation. Tom pitstops by this awesome edition of WN sharing his story and the incredible movement that is the SEMA SHOW

Jim Liaw serves as the General Manager of Performance Racing Industry (PRI), where he leads efforts to support and advocate for racers, builders, sanctioning bodies, tracks, and the businesses that fuel motorsports. A natural entrepreneur with a deep passion for the industry, Liaw has built a career creating and elevating programs that connect with both enthusiasts and the next generation of fans. Before joining PRI in 2021, Liaw co-founded Formula Drift in 2003 and served as its President. What began as a little-known motorsport from Japan quickly became the premier professional drifting series in the world under his leadership. Together with his partner, Liaw helped transform drifting into a global motorsport standard and an influential pillar of youth automotive culture. Jim is our special guest on this edition of WrenchNation, where he recounts the fascinating history of Formula Drift and shares insight into his current role with PRI, driving the future of motorsports forward.

Headliners + Horsepower ! OPTIMA® Batteries On the latest Wrench Nation, we sat down with Tom Gattuso, VP of Events for Specialty Equipment Market Association (SEMA), to dive into the incredible lineup and what makes this years SEMA FEST a must-see. Headliners include Queens of the Stone Age, The Black Crowes, and Neon Trees—blending world-class music with the ultimate car culture experience. Beyond the stage, SEMA Fest brings rare custom builds, concept rides, networking industry training sessioins, and the unique chance for the public to step inside the legendary SEMA Show on Nov. 7. It’s the perfect collision of horsepower and harmony. Don’t miss it. SEMA FEST Details : https://www.semafest.com/ Catch our complete WrenchNation interview with Tom coming soon on https://bit.ly/40oWRg1 A big hugs gratitude to many of the SEMA team quietly working to make an incredible event , year after year, while keeping members legislatively on the right side! We are grateful . Mike Spagnola Karen Bailey-Chapman

A couple of last-minute guests roll into the studio, as we swap stories about used car adventures—the good, the bad, and the 'what were we thinking?' moments. We’ll give you smart tips to avoid falling for the classic mechanical cover-ups that sellers try to slip past you, and dish up some practical advice empowering you before your next used car buy ! Need a prepurchase inspection ? Reach out to Frank for a community minded auto service facilty in your neighborhood .

You may not think about it when you start your car, but a world of innovation is working silently under the hood to keep your ride smooth, safe, and comfortable. From smart thermostats and electronic stability control to adaptive engine mounts and climate system breakthroughs, this episode of WrenchNation shines a spotlight on the unsung tech advancements that transformed your daily drive. We’ll explore how these behind-the-scenes components evolved, why they matter, and how they continue to quietly shape modern motoring—because sometimes the most important parts are the ones you never see. BONUS : Our talented board operator, student alumni of EVIT , Aiden Mohr ,shares his very beginning stages of transition as a new hire to the team at the garage ! We also share some latest automotive news of this and that.

The technician shortage isn’t just about a lack of interest or younger generations turning away from the trades. It’s about years of failed leadership, broken promises, and workplaces that left passion out in the cold. This week on Wrench Nation we dig deep into one of the industry's most pressing crises—and we're not pulling punches. We're joined by special guest Josh Parnell of Limitless Leadership , a voice that's challenging the status quo and calling out the cultural rot from the top down. From toxic shop environments to outdated mindsets that value profit over people, Josh helps us unpack how bad leadership has driven good techs out of the bays—and how real, intentional leadership can bring them back. If you've ever wondered why the tools are there but the hands are missing, you won’t want to miss this conversation. Reach out to Josh Parnell : Limit Leadership

Ever wonder what happens before the hammer drops? We take you behind the scenes of the auction process, from vehicle consignment to final sale so that you can navigate it all as a buyer or seller with confidence or an enthusiast taking it all in! How does the consignment process work? How are the reserve prices determined? What are the roles of the consignor before the auction? What are the roles of the consignor at the auction? Is there a better auction or even time to consign a vehicle? Our special guest is Gus Kozarzewski, a Consignment Agent with Mecum Auctions, who helps us navigate it all! SPECIAL TRIBUTE HONORING "JK" JOHN KRAMAN;THE PROFESSOR Mecum Auctions Motor Trend TV Lead TV Commentator Suddenly Passes Away Today we remember and honor JK of Mecum Auctions, a true icon in the automotive world. JK’s passion, dedication, and unwavering commitment to the collector car community left an indelible mark on all who had the privilege of knowing him. His love for classic cars was matched only by his generosity, kindness, and ability to bring people together through a shared appreciation of automotive history. Though he may no longer be with us, his legacy lives on in every auction, every car, and every memory he helped create. Let us celebrate his life, his impact, and the lasting influence he has left on Mecum Auctions and beyond. Rest in peace, JK—your spirit will always ride with us ! *Catch previous episodes of John Kraman

Emission Impossible: Avoid These Common Failures Discover the most common reasons behind failed emissions tests in this insightful episode of WrenchNation. From faulty oxygen sensors to leaky exhaust systems, we’ll break down the most common culprits and how they impact your vehicle’s performance and the environment. Whether you're a seasoned gearhead or a curious car owner, tune in for practical tips to keep your ride running clean and passing with flying colors & how to navigate check engine light causing failures.

Fast, Furious, and Full of Heart: Cody Walker Discusses FUEL FEST with Frank Leutz (Apologies for the delayed upload; please make sure to catch 2025 Fuel Fest Events coming to a city near you ) Join host Frank Leutz as he sits down with special guest Cody Walker to discuss the highly anticipated FuelFest 2024 in Scottsdale, AZ! Cody shares insights into this epic celebration of cars, music, and culture, paying tribute to the legacy of his brother, Paul Walker, star of the Fast & Furious franchise. Discover how FuelFest combines automotive passion with giving back, supporting Reach Out Worldwide (ROWW), the charity Paul founded to provide disaster relief. Don’t miss this heartfelt conversation about cars, community, and carrying on a powerful mission.

Welcome! You’ve landed at Busted Knuckle Garage, an automotive lifestyle brand with a story like no other. Founder Warren Tracy dreamt up this idea years ago while living deep in the Grand Canyon—an unlikely place for a car enthusiast, but that's exactly where the vision was born. One morning, Warren woke to find a rough cartoon sketch of a garage he’d drawn in his sleep, without any memory of doing it. That sketch soon became a reality, and after twenty years of passion, dedication, and grit, every piece of Busted Knuckle Garage merchandise you see today comes straight from that dream. No corporations, no assembly lines—just one guy, a love for classic cars, and a trusty wrench. Join us as Warren pitstops on the show to share is incredible journey !

Educating consumers properly about vehicle service and purchasing is crucial to ensure they have the best possible experience. With the right knowledge, consumers can make informed decisions, avoid being overcharged or misled, and feel confident when negotiating prices or choosing the right vehicle. Proper education also empowers them to understand essential aspects like maintenance schedules, warranties, and repair options, ultimately saving time and money while prolonging the life of their vehicle. A well-informed consumer is better equipped to handle unexpected challenges and make smarter investments, leading to a more satisfying vehicle ownership experience. An honor to have special guests Cathy Droz & Dave Ware of Raise A Hood Join us as we take a deep dive into consumer behaviors and how we can accomplish consistent stellar service under hood or on the new \used car lot when it comes to vehicle purchases.