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For 2006, the Acura TSX gets a revised grille, bumper fascia, headlights and foglights. Styling cues add to the sporty looks. The nose is clean and sharp. The headlights are narrow, horizontal slits that wrap around the fenders. New side sills for 2006 extend further outward, enhancing the car's already aggressive stance.

The Acura TSX is a four-door sports sedan. It shares most of its sheet metal with the European-market Honda Accord (which is different from the Accord sold in the U.S.). True to its intent as a sports sedan, the TSX features shorter overhangs than the Accord, featuring a relatively long wheelbase given its length. (The overhang is the part of the car that extends past the wheels.) To get a picture of the scale, the TSX is 183 inches long with a wheelbase of 105 inches; the Honda Accord is 187.6 inches long but also with a wheelbase of 105 inches. The RSX coupe is 172 inches long with a wheelbase of 101 inches.

Invisible to the eye are aerodynamic undertrays, strategic bellypans that help bring the coefficient of drag down to an impressive 0.27 for the Acura TSX. The backlight (rear window) slopes to meet a short trunk lid, which helps air separate cleanly off the back of the car at speed.

The nine-spoke 17-inch alloy wheels complement the clean lines, and the P215/50R17 tires are low-profile but not radical. Discreet business-like chrome exhaust tips are tucked under the redesigned rear fascia at each edge and give the car attitude. Dual exhausts on a four-cylinder are cool.

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The Acura TSX interior feels graceful. Satin-finish or simulated wood trim wraps from door to door, across the center console and steering wheel.

The driver's eight-way power seat offers good bolstering for comfort and hard driving, and features a two-position memory. The seat fits great and there's good legroom. Your companion will also be comfortable. A four-way power front passenger seat is standard. The Acura TSX is a technically a five-seat sedan, but it's better suited for four.

The rubber-coated pedals feel good, and there's a solid dead pedal. The 8,000-rpm tachometer is as big as the 160-mph speedometer because the TSX is all about using the tach. The faces of the gauges have been revised for 2006. The bright red needles give it just the right neon touch. There's a tidy three-spoke steering-wheel, wrapped skin-tight in perforated leather, just small enough. The shift knob is right, blending function and style with leather and polished aluminum, without compromising the function. You've got the E-brake lever at your side, a nice deep console bin, your cupholders and changeholder right there. A fingertip away is a 360-watt sound system with a six-CD player, with a new audio-in port for portable music players (think iPod). You've got a moon roof, you even have heated seats and heated outside mirrors.

Navigation systems are getting better every year and Acura's may be the best. The Acura TSX receives an improved system for 2006, with bigger buttons, a faster processor, more voice recognition commands, and a larger points of interest database. It's easy to program, and gives clear, accurate instructions, visibly and audibly. The display is big and crisp. The system uses a combination of hard buttons and context-sensitive on-screen menus. Unfortunately, you have to call up a menu just to switch radio stations, but fortunately, controls on the steering wheel let you bypass this task. The system also takes voice commands. Cool blue ambient lighting illuminates the console controls at night.