That's ancient.

It's a dinosaur. (Idiom)

It's older than Moses. (Idiom)

That's a museum piece.

So old, it's got whiskers.

Dialogue

A: Are you still driving that car you had in high school?

B: Yeah. It's older than Moses, but I love it.

A: 너 아직도 고등학생때 가지고 다니던 차를 타고 다니니?

B: 응,  아주 옛날 거지만 나는 그 차를 정말 좋아해.