BMW X3 40d

A B57 diesel not sold in America, tested on 1,500 km of Romanian roads with two kids, two car seats, and a mountain pass

Horatiu Boeriu • August 19, 2026

BMW's six-cylinder diesel X3 delivers strong power and range, but the cabin doesn't match the price.

Stefan Grundhoff • Updated: August 19, 2026 • Published: July 7, 2026

Discover the 2025 BMW X3 diesel lineup with the powerful six-cylinder X3 40d xDrive with 303 horsepower and 670 Nm (495 lb-ft) of peak torque

Horatiu Boeriu • January 28, 2025