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 blends Mazda’s SKYACTIV powertrain engineering with a smooth six-speed automatic to deliver engaging acceleration and sensible fuel economy for everyday driving and longer runs. Thoughtfully packaged for drivers who want a lively, efficient ride without sacrificing comfort or practicality.*Brake assist* boosts stopping force during sudden braking, helping shorten stopping distance in emergencies so you can feel more confident when quick reactions are needed.Variable valve control adjusts valve timing on the fly, helping the engine stay efficient at low speeds and more responsive under acceleration for improved overall drivability and economy.The compact inline four-cylinder layout balances usable power with strong fuel economy and typically lower maintenance costs, making ownership more affordable over time.A dual overhead cam *DOHC* setup allows the engine to breathe better at higher revs, producing sharper throttle response and a livelier feel when you push the car.Direct fuel injection meters fuel precisely into each cylinder to increase power delivery while trimming consumption and reducing engine noise for a smoother, more efficient ride.The efficient inline-four design gives a practical mix of performance and economy, ideal for commuting, weekend trips, and daily errands without excess fuel use.*DOHC* technology improves engine performance across the rev range, helping the Mazda3 feel peppy when you accelerate yet refined during normal cruising.Proximity key with push-button start removes the need to fumble for keys: unlock and start the car while the fob stays in your pocket, adding convenience to every drive.A coded *ignition immobilizer* adds a passive layer of security so the vehicle wont start without the correct key signal, helping deter theft and giving you peace of mind.*External memory control* makes it easy to bring your music and media along—access audio files from a connected drive or stick so your favorite playlists travel with you.*Digital/analog instrumentation* combines classic needle gauges with precise digital readouts, giving quick visual cues and accurate trip information in one easy-to-read layout.*Electronic stability control* monitors vehicle behavior and steps in with traction and brake assistance when slip is detected, helping maintain control during abrupt maneuvers or on slick roads.*Hill hold control* prevents rollback on inclines by holding brake force briefly during a hill start, making stop-and-go driving on slopes less stressful and safer.The 2015 Mazda Mazda3 i SV pairs efficient SKYACTIV technology with practical convenience and safety features that suit daily use and occasional spirited drives. If you want an economical compact sedan that still feels engaging behind the wheel, this Mazda3 is worth a closer look—schedule a test drive to experience its balance of refinement, responsiveness, and everyday usability.