Engines and Transmissions
The fourth-generation Mazda 3 (BP) features the Skyactiv family of powertrains. In the US market, the lineup centers around the 2.5-liter Skyactiv-G engines, available in naturally aspirated and turbocharged versions. All models come with i-stop technology, and later versions often include a 24-volt mild-hybrid system (M Hybrid). Transmissions are a 6-speed manual (Skyactiv-MT, available on select front-wheel-drive hatchbacks) or a 6-speed automatic (Skyactiv-Drive). The i-Activ AWD all-wheel-drive system is widely available and standard on turbo models.
Vehicles in the US are primarily sold new through dealerships, with configurations optimized for American preferences and regulations.
| Engine Type | Displacement | Power | Transmission | Drivetrain | Notes |
|---|---|---|---|---|---|
| Gasoline Skyactiv-G | 2.5 L | 191 hp | 6MT / 6AT | FWD / AWD | Standard engine; 186 hp rating in some sources, AWD requires automatic |
| Gasoline Turbo Skyactiv-G | 2.5 L | 227–250 hp* | 6AT | AWD | Turbo; up to 250 hp on premium fuel, 227 hp on regular |
*250 hp and 320 lb-ft with recommended premium unleaded fuel.
Dimensions and Weight
Dimensions are consistent across most markets, with minor differences between hatchback and sedan. Figures shown are for the most common US configurations (curb weight varies by trim, engine, and drivetrain).
| Parameter | Hatchback | Sedan | Notes |
|---|---|---|---|
| Length, in | 175.6 | 183.5 | Standard for the generation |
| Width, in | 70.7 | 70.7 | Without mirrors |
| Height, in | 56.7–56.9 | 56.9–57.0 | Depending on trim |
| Wheelbase, in | 107.3 | 107.3 | Uniform |
| Curb Weight, lbs | 3,300–3,500 | 3,100–3,400 | Approximate; varies with engine and AWD |
| Gross Vehicle Weight, lbs | 4,000–4,300 | 4,000–4,300 | Approximate |
| Cargo Volume, cu ft | 20.1 (hatch) – 47.1 (seats folded) | 13.2 | Hatchback with seats folded |
Values are averaged; AWD and turbo versions are typically 150–300 lbs heavier.
Updates by Year and Refresh
The BP generation remains current without a full redesign. A mild facelift in 2021 updated the grille, taillights, and infotainment (improved Android Auto / Apple CarPlay support, later versions wireless), along with refinements to i-Activsense driver assists.
In the US, the 2.5-liter naturally aspirated and turbo engines have been the focus since launch. For 2025–2026, the lineup emphasizes the 2.5 Skyactiv-G (standard and turbo) with i-Activ AWD widely available on higher trims. US models benefit from ongoing updates to tech, safety, and efficiency.
Driving Experience and Technical Notes
The Skyactiv-G 2.5 engines (both naturally aspirated and turbo) offer excellent reliability with proper maintenance: timing chain, no turbo on base models. The turbo version requires premium fuel for maximum output but runs well on regular with reduced power. The Skyactiv-Drive automatic shifts smoothly and reliably; the manual (on select hatchbacks) is precise and engaging. AWD enhances traction in wet or snowy conditions but slightly increases fuel consumption and weight. Parts are readily available through the dealer network; maintenance costs are reasonable for the class, with strong repairability.
Most popular configurations in the US include the 2.5 Skyactiv-G (191 hp) and the 2.5 Turbo (up to 250 hp). EPA-estimated fuel economy: base 2.5 FWD — 26–30 mpg combined; AWD versions — 29 mpg combined; Turbo AWD — 23–26 mpg combined, depending on driving style.
Summary and Best Choice for the US Market
For the US market, the balanced choice is often the 2.5 Skyactiv-G with 6AT and available AWD — it delivers good fuel economy, strong parts availability, and excellent resale value. The 2.5 Turbo AWD versions add exciting performance and usually come with richer equipment, though with higher fuel use and potential service costs. The Turbo suits enthusiasts seeking maximum power but benefits from a thorough vehicle history check.
Exterior design, interior, trim levels, and common issues of the generation are covered in other articles in the Mazda 3 IV (BP) series.
