Mazda Mazdaspeed 6 Grand Touring
The Mazdaspeed 6, sold as the Mazda 6 MPS in international markets, was one of the most underrated performance sedans of the mid-2000s. Combining a turbocharged direct-injection engine with all-wheel drive in a handsome mid-size sedan body, it offered a compelling alternative to the Subaru WRX STI and Mitsubishi Lancer Evolution at a significantly lower price point.
At the heart of the Mazdaspeed 6 sat the MZR DISI 2.3-liter turbocharged inline-four, the same basic engine that powered the Mazdaspeed 3 but in a more refined state of tune. Producing 274 horsepower and 280 lb-ft of torque, the direct-injection engine delivered its power smoothly and progressively, without the aggressive turbo lag that characterized many turbocharged cars of the era. The direct injection system, relatively novel at the time, provided improved fuel economy and cleaner emissions alongside the performance benefits.
The all-wheel-drive system was a full-time unit with an active torque-split center differential that normally sent the majority of power to the front wheels but could direct up to 50% to the rear axle when slip was detected. This arrangement provided excellent all-weather traction without the weight penalty and complexity of a more traditional rally-bred AWD system. In practice, the Mazdaspeed 6 felt confidence-inspiring in all conditions, from dry mountain roads to snow-covered highways.
The sole transmission option was a 6-speed manual, reinforcing the car's enthusiast credentials. The shifter was precise and well-weighted, with a satisfying mechanical feel that complemented the engine's character. Combined with the well-tuned suspension — firmer than the standard Mazda 6 but not punishingly stiff — the Mazdaspeed 6 struck an excellent balance between daily comfort and weekend canyon carving.
Exterior modifications were subtle: a modest body kit, larger wheels, and dual exhaust tips were the primary visual differentiators. This understated approach appealed to buyers who wanted genuine performance without the boy-racer image associated with some competitors. Inside, the Mazdaspeed 6 received bolstered sport seats, a leather-wrapped steering wheel with red stitching, and aluminum pedals.
Despite its capabilities, the Mazdaspeed 6 was a commercial disappointment, with relatively modest sales during its brief two-and-a-half-year production run. Today, clean examples are becoming increasingly rare and sought after by enthusiasts who appreciate its unique combination of all-weather performance and refined presentation.
The turbocharged MZR engine is prone to VVT (variable valve timing) actuator failure — listen for rattling on cold start and check for stored codes. Inspect the turbo for shaft play and oil leaks. The AWD system's rear differential should be checked for leaks and proper fluid level. Check for rust on subframes, particularly in northern climates. The 6-speed manual transmission is generally robust but inspect the clutch for judder or slip. Verify the timing chain has not stretched (common after 100,000 miles). The direct injection system can cause carbon buildup on intake valves — walnut blasting is the accepted remedy. Finding clean, unmodified examples is increasingly difficult as many were modified during their depreciation curve.
Built at the AutoAlliance International plant in Flat Rock, Michigan alongside the standard Mazda 6 and Ford Fusion. Production ran from mid-2005 through 2007 with no direct successor. In international markets, the vehicle was sold as the Mazda 6 MPS (Mazda Performance Series) or Mazdaspeed Atenza in Japan. The MZR DISI 2.3T engine was one of the first production direct-injection turbocharged engines available in the mass market.