What's the secret

People often say that German cars (like BMW, Mercedes, etc.) tend to “drive the same” even after a few years — meaning the steering, suspension, and overall feel stay consistent.

But with many Indian cars (like Tata, Maruti, etc.), the driving feel seems to change over time — things feel looser, less refined, or different.

From a mechanical point of view, aren’t most cars built on similar principles (engine, suspension, chassis, etc.)?

after all mechanical things don't see whether the brand is indian or German so why is that difference