
Cadillac luxury knows no limits. Cadillac recently unveiled the SOLLEI concept vehicle, a pinnacle of luxury design and innovation as a coach-built electric convertible. This visionary concept redefines what’s possible in bespoke automotive design, offering a glimpse into the future of personalized luxury tailored to reflect the unique passions and interests of its discerning clientele.
“SOLLEI reimagines the discovery of travel, offering a personalized driving experience that connects drivers with the natural world,” said Erin Crossley, design director at Cadillac. “The concept celebrates Cadillac’s legacy of elegant convertibles in a modern form, embodying luxury through design and experience.”
Innovative Materials and Design
The SOLLEI concept introduces Cadillac’s first use of a groundbreaking bio-based material developed in collaboration with MycoWorks. Fine Mycelium™, made from the renewable root structure of mushrooms, is used in the vehicle’s charging mats and door map pockets. This innovative material reflects Cadillac’s commitment to pioneering sustainable resources in the automotive industry.
Exterior Elegance
The SOLLEI’s exterior is a masterpiece of emotion and bold design, characterized by Cadillac’s signature proportions. Its low, elongated body and wide stance are accentuated by a long coupe door, providing easy access to the spacious rear seats. The vehicle’s clean lines are uninterrupted by conventional door handles, replaced instead by discreet buttons, and the mid-body line seamlessly connects the headlamps to the taillights.
The exterior is finished in “Manila Cream,” a color originally used on Cadillacs in 1957 and 1958. This revived and hand-painted finish pays homage to Cadillac’s rich heritage of bold, timeless colors.
Interior Luxury
Inside, SOLLEI embodies Cadillac’s “art of travel” philosophy, elevating the driving experience with luxurious features such as a fully integrated beverage chiller with a power glass door and crystal glasses. The interior is a showcase of craftsmanship, with illuminated décor, hand-cut wood veneers, and marquetry techniques that create a stunning focal point stretching from the front doors to the rear compartment.
The interior also features sophisticated ambient lighting, with 126 color options across multiple zones, allowing for complete personalization. Cadillac has even catered to bird-watching enthusiasts with a custom interior accessory set, including 3D-printed acrylic bird calls, a leather-bound journal with hand-painted illustrations, and a leather tool roll for pens and pencils.
Celestial and Sun-Themed Design
SOLLEI’s design is deeply inspired by the sun and the celestial environment, with sunburst-themed lighting, seat pattern embroidery, and a pink iridescent pigment in the Fine Nappa leather that creates a color-changing sunrise effect. The concept also includes unique materials like MycoWorks’ Fine Mycelium™ in an iridescent finish, a pink hue on the beverage chiller door, and “Daybreak” metallic fabric for the convertible roof.
With SOLLEI, Cadillac continues to push the boundaries of luxury, offering a glimpse into a future where bespoke design meets cutting-edge innovation in the world of electric vehicles.


