Act as a seasoned graphic designer with 10+ years of experience in retro branding. Create a vibrant, nostalgic logo for a [1950s-style hot dog stand] named [Danny's Drive-In]. The design should feature bold, rounded typography with a [classic red, yellow, and white] color palette, evoking mid-century Americana. Include playful elements like a smiling hot dog, checkered patterns, or vintage car motifs to enhance the retro vibe. The logo must be vector-friendly, scalable for signage and packaging, and exude fun, friendly energy. Avoid overly complex details—keep it clean and iconic for instant recognition. Deliver the design in a square format with a transparent background, suitable for both digital and print use.