How do etruscan temple designs resemble or differ from Greek temple designs from the same period?

Differences between Greek temples and Etruscan temples:

Greek: Colonnade: Around entire perimeter.

Etruscan: Colonnade: Columns only in front.

Greek: Steps: Three steps around perimeter.

Etruscan: Steps: Steps on in front.

Greek:Porch: In front of, and behind, the cella.

Etruscan: Porch: Only in front of the cella.

Greek: Podium: Small, consisting of three steps.

Etruscan: Podium: Tall, with steps only in front.

Greek: Cella: One room.

Etruscan: Cella: Three rooms.

Greek: Pediment: Closed and decorated with sculpture.

Etruscan: Pediment: Open and not decorated.

Greek: Sculpture: In pediments, metopes, and frieze.

Etruscan: Sculpture: On the roof.