Cadillac has a new convertible concept EV that’s longer than some SUVs, has giant pillar-to-pillar infotainment screens, and can keep you cool for the summer with a refrigerator in the back seat.

It’s called the Sollei, and it’s a new electric vehicle concept that looks like a convertible version of Cadillac’s bespoke “Celestiq” — the automaker’s answer to exclusive luxury vehicles like the Rolls-Royce. The new vehicle converts the $340,000 full-size electric sedan into a “manilla cream” coupe that tries to evoke the sun with ray patterns emanating from the center of every seat and from the wooden panels on the back of them.

The Sollei was shown off at the Cadillac House at Vanderbilt in Warren, Michigan — the same place high-rolling customers would go to select the leather and other materials when purchasing a hand-built Celestiq. The Sollei, however, takes a different and more sustainable approach to materials, like using biodegradable mushroom-based mycelium instead of leather. There are still leather-adorned accessories designed for the car, though, including a bird call set and leatherbound journal that match the car’s color.

It’s clear that the Sollei is built from the Celestiq, as it shares a similar 55-inch infotainment screen cluster and animated LED facade as the Celestiq. In a full walkaround video, Auto Buyers Guide says the Sollei is “harkening back to the origins of Cadillac as an ultra-luxury provider of vehicles.” Cadillac sees the Sollei as a vehicle that “pushes the boundaries of future bespoke commissions,” although it has no plans to sell the concept as it does the Celestiq.