PolonezGarage on Instagram: "Avant Spoiler Highlight | Green Vinyl Contrast on Black Roof In this tutorial we show a clean and eye‑catching roof spoiler customization on a black Audi A6 Avant. The rear spoiler and glass are already dark, so we add a bright green vinyl stripe that matches the car’s full body wrap. The result is a bold contrast and a sporty finish — simple, safe, and reversible. 📋 Step‑by‑step process: 🧼 Clean the spoiler surface thoroughly 🔖 Apply knifeless tape along both edg