Since 2002, The Krellman Group has provided professional Hot Wheels collection appraisal services for insurance riders, insurance claims, eBay fraud investigations, U.S. Postal damage claims, and court matters, including estate and divorce settlements.
We also specialize in authenticating - or disproving - rare and potentially fraudulent Hot Wheels cars and related memorabilia, including the issuance of Certificates of Authenticity when required.
Expert Appraisal Authority
Your appraisal is conducted by none other than Michael Zarnock, 2009 Die-Cast Hall of Fame inductee, Hot Wheels historian, published author, and Internationally recognized expert. Who better that Mike Zarnock is more qualified to appraise or authenticate Hot Wheels collections...
Mike Zarnock is an American Actor, Published Author and Syndicated Columnist. He is also Host and producer of Hot Wheels TV, a popular YouTube series dedicated to the history, collecting, and culture of Hot Wheels. His expertise is supported by one of the world's most extensive Hot Wheels collections, consisting of approximately 30,000 distinct vehicles, accessories, and related memorabilia.
His work includes 14 published books, numerous contributed chapters, and hundreds of magazine articles focused on Hot Wheels collecting and history.
Recognitions & Credentials
Michael Zarnock is a Three-Time Guinness World Record holder!
The most gravity fed loop-the-loops on a Hot Wheels track achieved in Chicago, Illinois, USA, on February 5th, 2020.
The Hot Wheels track measured 34 ft with 7 loops. It was built as part of the "Jaguar Land Rover display at the Chicago Auto Show".
He has also been featured in two publications of "Ripley's Believe It or Not!" for his Fascination with Hot Wheels.
These credentials, combined with access to a trusted network of additional subject-matter experts, ensure that every appraisal is conducted with diligence, accuracy, and professional integrity.
Management & Services
As of May 2025, The Krellman Group has formed "Zarnock Media Entertainment LLC", which now manages all professional services for Mike Zarnock.
Appearance requests, autographed book purchases, freelance writing, work-for-hire projects, interviews, hosting, and acting engagements are coordinated exclusively through "Zarnock Media Entertainment LLC".
For rates, appearance contracts, or general inquiries, please contact us directly at Zarnock Media for additional information.