BMW GR Supra Reborn As Hard-Top Z4 Coupe Tribute For SEMA LV

The BMW GR Supra takes an unexpected turn here, starring as the basis for a bespoke hard-top that wears a BMW Z4 face with factory-grade fit. Built by the enthusiast behind MySupraAdventures, the coupé blends Toyota’s A90 shell with BMW’s roadster styling cues to create the Z4 coupé Munich never offered. It’s set for a public reveal at SEMA, where the crisp shutlines and production-like stance should make more sense than any render ever could.

On paper, the Supra and Z4 are platform twins, but this build proves how different their skins really are. The bonnet, wings and lamp units aren’t simple bolt-ons; beneath the surface, mounting points, crash structures and panel geometry diverge. Designer Xavier Cuevas worked with the owner to model and fabricate new brackets and interfaces, preserving correct proportions and headlight aim while keeping panel gaps tight. The result is coherent bodywork that looks born, not spliced.

Visually, the hard-top silhouette gives the Z4’s nose a purposeful partner. The Supra’s roofline and muscular rear arches flow naturally into the BMW front clip, so the car reads like a late-night skunkworks special from within the same alliance that created both models. The long bonnet, short overhangs and broad track remain, but the surfacing gains a different character line and light signature—more Bavarian in expression, still very much a driver’s coupé in stance.

There’s an element of neat symmetry, too. The Supra began life sharing its core hardware with the Z4; this project loops the story back, sending the Toyota down a path towards BMW identity without touching the car’s underlying dynamics. Think of it as a design study that asks “what if?”—a plausible Z4 coupé that honours both badges while keeping the chassis, power delivery and cabin layout that enthusiasts already rate.

SEMA loves ingenuity, and this one feels properly engineered rather than just eye-catching. It’s a full-circle homage built with care: Toyota’s coupé bones, BMW’s front-end language, and craftsmanship that ties the two together. If the prototype finish is any indication, the finished car should stand proudly under the lights—a one-off that looks like it slipped through a gap in the product plan and onto the show stand.