Final answer:
The most typical characteristic of an Etruscan temple is a raised podium, which provided a singular grand entrance as opposed to the all-around access seen in Greek temples, and they often had a more symmetrical plan.
Step-by-step explanation:
The characteristic most typical of an Etruscan temple is a raised podium. Unlike Greek temples which were peripteral, with columns surrounding the entire structure, Etruscan temples were often built on a high base and featured columns only at the front or had a deep porch indicating a strong frontal emphasis. This elevated podium allowed for a grand staircase that led to the pronaos, creating a pronounced and singular entrance, as opposed to the all-around access seen in Greek architecture. In addition, they typically had a more symmetrical plan and sometimes housed multiple cellas or cult rooms.