From Acura press: The TSX sports sedan complements the sporty TL and the luxurious RL in Acura's lineup of performance luxury sedans. The TSX is positioned as a stepping stone to other Acura products and provides luxury sedan buyers with an entry point to the Acura brand.
The front-wheel drive TSX was engineered and appointed to compete with Europe's best sedans in the sporty near-luxury segment (the European D segment). This segment includes cars like the Audi A4 and the BMW 3 Series.
In keeping with its European competitors, the TSX driving character is sharply focused on the sporty end of the scale. Its double-wishbone front and multi-link rear suspension has sophisticated geometry that helps the TSX corner flat and resist acceleration lift and braking dive. In addition, the TSX has P215/50R17 Michelin MXM4 V-rated tires, 4-wheel disc brakes, and an impressive arsenal of electronic driver aids including Vehicle Stability Assist (VSA) with traction control and an Anti-lock Braking System (ABS). A highly refined power rack-and-pinion steering system provides outstanding road feel that rivals the best Europe can offer. The takeaway for the driver is an ultra-competent entry luxury sports sedan that's immensely fun to drive.
For 2006, Acura made significant changes to the TSX to enhance its performance, exterior styling and interior sophistication. The result is a sports sedan that is more luxurious, sportier and even more fun to drive.
The TSX is a precisely engineered sports sedan that blends agility and handling with 5-passenger comfort. That delicate balance of attributes drove every aspect of development, including the selection of the powertrain. When it came to choosing a powertrain configuration for the TSX, the path soon became clear. A V-6 like that in the TL would deliver abundant power, but would increase the size and weight of the car, and move the TSX away from its sporting intentions. An in-line 4-cylinder, using the latest Acura technologies, would make for a lighter, well-balanced, more compact vehicle that puts the emphasis on overall sporting performance and handling responsiveness.
Power for the 2006 TSX comes from an advanced 2.4-liter DOHC i-VTEC in-line 4-cylinder that has been modified to raise output to 205 hp SAE net (Rev 8/04). With an i-VTEC "intelligent" valve control system that features Variable Valve Timing and Lift Electronic Control (VTEC) combined with Variable Timing Control (VTC), the TSX engine delivers formidable power, impressive fuel economy and very low exhaust emissions.