Variable valve-timing and variable intake system improve low-rpm power, while electronic throttle control improves response. Counter-rotating balancers substantially reduce vibration, making this a particularly smooth-running powerplant. At the same time, the engine really does its best work above the torque peak of 150 pound-feet at 4000 rpm as it pulls to its power peak of 156 hp at 6500 rpm, so it needs a little help from the driver's shifting skills to stay in the fat part of the powerband. At the same time, the engine's fuel-economy ratings indicate there's also good things to be had when you drive at a relaxed pace, as it delivers and EPA-rated 26 mpg City/33 mpg Highway on regular grade gasoline.
Both the sedan and the five-door are set up to take advantage of the strong personality afforded by Mazda's MZR-generation engines. The steering with its electro-hydraulic power assist responds crisply and accurately to your command, and the tires afford plenty of grip in the corners. The brakes are up to the task as well. Electronic brake-force distribution and brake assist are standard for S-models and optional for i-models. For 2007, traction control and stability control are available for s-models. As a fun-to-drive package, the Mazda3 has better credentials than its competition.
It might not be entirely correct to put the Mazdaspeed3 in this group of Mazda3 models, as its turbocharged engine with direct fuel-injection delivers 263 hp at 5580 rpm. This front-wheel-drive car also has all the hardware to keep up with so much power, notably a six-speed manual transmission that rips off quick, clean shifts in a way that no other front-wheel drive car can match.
The Mazdaspeed3 is a legitimate 155-mph automobile, yet it's really in its element in the corners. The chassis stays balanced and predictable right to the limit of tire adhesion, and there seem to be no surprises in the way it handles. The limited-slip differential helps keep both front tires delivering optimal power right to the limit, and it carves through the corners in a way that's distinct from its all-wheel-drive competitors like the Subaru WRX and Mitsubishi Evo. Meanwhile, the Mazdaspeed3 also has a quieter, calmer personality on the freeway than its competition. Next Page