Since curb weight essentially unchanged, the 2006 Mazda MX-5 Miata's new 2.0-liter inline four-cylinder engine should have no trouble improving upon the performance of the old model. This twin-cam motor is equipped with variable valve timing and should develop about 160 horsepower at 6,700 rpm with a torque peak arriving at 5,000 rpm (final specs will be released closer to the car's arrival at dealerships). Mazda wanted this new engine to rev freely to redline, even past the torque peak, so intake restriction and exhaust backpressure have been reduced. Combined with a lighter flywheel, electronic throttle control, and a stiffer driveshaft, these improvements to the 2006 Mazda MX-5 Miata should make the roadster feel significantly quicker.

Power flows to the rear wheels through a standard short-throw, six-speed manual transmission equipped with triple-cone synchronizers that reduce engagement force in the first four forward gears. A six-speed automatic transmission is optional, and features a manual shift mode for greater driving involvement.

Like the original Miata, the redesigned 2006 version features a double-wishbone front suspension and a multi-link rear suspension, this time equipped with anti-dive and anti-squat geometry. The handsome multi-spoke 17-inch wheels are one size larger in diameter, and wear 205/45 performance tires. They front a four-wheel-disc braking system with larger rotors, stiffer calipers, and other modifications designed to produce short pedal travel and linear brake application. Mazda has also retuned the power rack-and-pinion steering, and when combined with the new MX-5 Miata's wider track, larger tires, and stiffer body structure, it produces quicker response and better handling.