Create a cute and friendly cartoon-style Racing car illustration, suitable for a 6-12 year-old children's coloring book. The Racing car should be viewed from a 45-degree angle, with all lines drawn in black ink, following the coloring book style. Use thicker lines for the Racing car's outlines and softer lines for its endearing details. Avoid using any other colors, and keep the background white with no added text. --v 5.2