2015 Mazda Mazda3 4dr Sdn Auto i SV — SKYACTIV-G 2L I-4 *direct injection*, *DOHC*, variable valve control, regular gasoline engine with 155HP paired to a SKYACTIV-Drive 6-speed automatic. This compact sedan combines Mazda’s SKYACTIV engineering with a lively four-cylinder and a smooth automatic transmission to deliver an engaging drive and sensible fuel economy for daily commuting and longer trips.*Brake assist* detects hard braking and supplements your pedal input with extra stopping force, helping reduce stopping distance when you need to halt quickly.Variable valve control continuously alters valve timing so the engine stays efficient at low speeds yet becomes more responsive when you ask for acceleration, improving both fuel use and performance.The inline four-cylinder layout offers a practical mix of usable horsepower and fuel efficiency, making ownership costs and routine maintenance more affordable.A dual overhead cam setup helps the engine rev more freely and delivers sharper throttle response for a peppier feel when accelerating.Direct fuel injection meters fuel precisely into each cylinder to enhance power delivery while trimming fuel consumption and reducing noise for a smoother ride.Proximity key with push-button start removes the need to fumble for keys—unlock and start the car while the fob stays tucked safely in your pocket or bag.An *ignition immobilizer* provides a passive security layer that prevents the engine from starting without the properly coded key, helping deter theft.*External memory control* makes it simple to access and play music or other media from a connected drive or memory stick, so your favorite audio travels with you.*Digital/analog instrumentation* combines traditional needle gauges with precise digital readouts, giving you fast visual references alongside accurate trip and vehicle data.*Electronic stability control* watches vehicle dynamics and intervenes with traction and brake support when slip is detected, helping you maintain composure in sudden maneuvers or slick conditions.*Hill hold control* prevents rollback on inclines by holding brake force briefly during a hill start, making stop-and-go driving on hills less stressful.The 2015 Mazda Mazda3 i SV pairs efficient SKYACTIV engineering with thoughtful convenience and safety features that suit everyday driving and occasional spirited runs. If you value an engaging compact sedan that’s economical to operate and comfortable to live with, this Mazda3 is worth a closer look—arrange a test drive to experience its balance of refinement, responsiveness, and real-world practicality.