For enthusiasts in Glendale and Milwaukee, the choice between the 2026 BMW 3 Series and the 2026 BMW 4 Series is often the most difficult decision in the showroom. While both vehicles are built on a similar mechanical foundation, they are tuned for distinct driving personalities. The 3 Series remains the benchmark for the luxury sports sedan, while the 4 Series offers a wider, lower, and more aggressive stance designed for those who prioritize presence on the road.
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Though they share a wheelbase, the 4 Series is engineered with a lower center of gravity and a wider rear track, which translates to flatter cornering when navigating the winding roads along Lake Michigan. Conversely, the 3 Series utilizes its taller roofline to provide superior rear-seat headroom and a slightly larger trunk for daily Milwaukee commutes. |
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| Category | 2026 BMW 330i Sedan | 2026 BMW 430i Coupe |
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| Overall Length | 185.7 inches | 187.9 inches |
| Overall Width | 71.9 inches | 72.9 inches |
| Overall Height | 56.8 inches | 54.6 inches |
| Rear Headroom | 37.6 inches | 35.2 inches |
| Trunk Volume | 17.0 cubic feet | 12.0 cubic feet |
| 0–60 MPH (Base) | 5.6 seconds | 5.8 seconds |
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