G45 · X3 30 xDrive

What the BMW G45 Is

The BMW G45 is the fourth generation of the X3, BMW's perennially popular midsize luxury SUV. Introduced for the 2025-2026 model years, it replaces the outgoing G01 with a cleaner, more sculpted exterior, a heavily digitized cabin built around BMW's curved display and iDrive interface, and a lineup that leans on 48-volt mild-hybrid technology across the board. As the volume SUV in the range, the G45 sits at the heart of BMW's global sales strategy, blending everyday practicality with the driving character that defines the brand's engineering DNA.

The Models & Body Styles in This Generation

In the United States, the G45 X3 arrives in two distinct trims, both with standard all-wheel drive:

• X3 30 xDrive — the four-cylinder volume model, positioned as the efficient, well-rounded daily driver.
• X3 M50 xDrive — the six-cylinder performance flagship, wearing the M Performance badge with sportier tuning, styling, and output.

Both are five-passenger SUVs sharing the same wagon-height crossover body. You can confirm exactly which variant and equipment a given vehicle carries by running its number through our BMW VIN decoder.

Engines & Drivetrains Offered

The G45 continues BMW's move toward electrified combustion. The X3 30 xDrive pairs a turbocharged 2.0-liter four-cylinder with a 48-volt mild-hybrid system, while the X3 M50 xDrive steps up to a turbocharged 3.0-liter inline-six, again with mild-hybrid assistance for smoother stop-start behavior and a modest torque boost. Every US G45 uses BMW's xDrive all-wheel-drive system routed through an eight-speed automatic. For those who appreciate the lineage of BMW's earlier chassis and their powertrains, exploring platforms like the E70 X5 or a classic E90 sedan shows just how far the brand's turbocharged, electrified strategy has evolved.

Ownership, Strengths & Things to Watch

As a brand-new design, the G45 arrives with full factory warranty coverage and BMW's included maintenance program, which softens early ownership costs. Its strengths are familiar X3 virtues: a composed ride, strong straight-line performance—especially in M50 form—and a spacious, tech-forward interior.

Because the platform is so recent, long-term reliability data is still limited, so prospective buyers should watch for the usual first-year software and electronics refinements common to any all-new BMW model. Prioritize vehicles with complete service records and verify software updates have been applied. As the generation matures, DreamBMW will update this page with documented owner-reported issues as they emerge.