Two ways to build — same engine underneath. Every shirt is painted from your car and livery, not a preset design.
Describe what you want — the pit crew searches 560+ pro race-shirt refs, picks the mood, paints your car, and drops a mockup in chat.
Upload your car → pick a layout wireframe (where art + type go) → Paint my shirt.
Every painted shirt gets a unique scene cut — torn edge, starburst, or zigzag — so the art bleeds into the tee. Never a boxed poster. Sponsor logos float around the scene automatically.