The '07 LaCrosse is unmistakably a Buick, with its trademark vertical-bar waterfall grille, long nose, long slopes and simple body curves. A tiny third side window behind the C-pillar adds some visual interest, while at the rear, a discernible dent in the decklid ties the taillamps together and recalls the more adventurous surface development that characterized Buicks of the early 1960s. A single, slender chrome spear decorates the doors. XM Satellite Radio shares a single antenna with the standard OnStar system.

CX models can be identified by a grained, graphite-color finish on the rocker panels underneath the doors, while this panel is body color on CXL and CXS. Otherwise, the base CX has almost no decoration at all, beyond the bolt-on faux alloy covers for its 16-inch steel wheels.

Construction quality looks good. Body, door, and fender gaps on the LaCrosse are all noticeably smaller than on the previous Regal and Century models. And LaCrosse's headlamps are said to be 35-percent brighter.

To improve crash safety and reduce noise, Buick used generous amounts of expensive, high-strength steel, including steel reinforcements in the rocker panels, high-strength steel door beams, and a double-thick Quiet Steel floor pan and firewall. There's also an interlocking door latch system, a magnesium cross beam behind the instrument panel, another cross beam behind the rear seats, and structural foam in the front fenders.

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