Why is the Audi 80 considered a classic?

I've heard many people talk about the Audi 80 as a classic car, but what exactly makes it so iconic and timeless? Can anyone shed some light on this?

The Audi 80 was the first model to introduce the brand's signature 'quattro' all-wheel drive system, setting a standard for performance and handling in the industry. Additionally, its sleek and modern design still stands out today.

The Audi 80 also became known for its reliable and efficient engines, especially the 1.8-liter turbo diesel engine which was ahead of its time in terms of fuel economy and emissions.