Is the $113,540 (as tested) Porsche Panamera 4S a worthy competitor for the M3 sedan, M5, CTS-V, E63 AMG, and IS-F? InsideLine’s full test should answer that question. This AWD vehicle is powered by a naturally-aspirated 400hp V8.Video after the break. Click here for first picture in gallery.

Our only gripes center around the Panamera’s dual-clutch automated transmission. While flawless in the hills, the ZF-built PDK transmission is not perfect in the real world.

[via Insideline]