Classic Car and Motorcycle Advisory
Independent, expert guidance for buyers, sellers, and collectors, from pre-purchase inspections to auction representation and collection strategy.
Fixed-fee advisory · No commissions · 100% objective counsel
Services
Two core services built on decades of hands-on experience in the collector car and motorcycle world.
Pre-Purchase Inspection
Thorough assessment of structural, mechanical, electrical, and cosmetic condition for classic cars and vintage motorcycles. Verification of numbers, date codes, and documentation — so you buy with confidence, whether at auction or through private sale.
Fixed rate packages and transparent pricing.
Auction Representation
Selective buyer and seller-side representation at live auctions and online platforms. From pricing and reserve strategy to listing preparation and day-of management - experienced guidance through every stage of the auction process.
Flat-fee representation with extra services available.
Founded by Mathieu Guyot-Sionnest, former car and motorcycle specialist at Bonhams and Broad Arrow, vintage racing driver, and Concours d'Elegance judge.
300+ Vehicles Appraised 10+ Years in the Industry 500+ Vehicles Sold
For Collectors
Beyond individual transactions, we offer ongoing advisory relationships for serious collectors looking to build, manage, and evolve their collections.
Collection Strategy and Diversification
Strategic guidance on building and evolving your collection - including diversifying from classic cars into vintage motorcycles. Acquisition planning, disposition timing, and market positioning.
Collection Management
Ongoing coordination for multi-vehicle collections: inventory structuring, historical research, valuation context, and liaison with third-party providers. Formal appraisals available for estates and institutions.