Synthwave Sunset Over an Empty Desert Highway with a Vintage Convertible

An empty cherry-red vintage convertible parked on the shoulder of a straight desert highway at sunset, rendered in retro synthwave style. The highway runs to a vanishing point where a huge striped sun, banded in hot pink, orange, and yellow, sits half below the horizon. Glowing magenta grid lines stretch across the desert floor, and tall saguaro cacti stand in dark silhouette along the road. Low purple mountains with neon cyan rim light frame the horizon. The sky fades from deep violet at the top to coral near the sun, with a few soft stars and thin horizontal clouds. Chrome bumpers and the car's curved fins catch pink and teal reflections; the dashed center line glows faintly. Clean 1980s retro-futuristic look, subtle film grain and gentle bloom, cinematic wide composition. No people, no text, no logos, no license plate characters.