The i6 runs smoother, producing a more pleasing engine sound. One user notes the Triumph TR6 as having a "perfect" exhaust ...

While BMW would likely dominate a list such as this, in the interest of fairness, we've decided to only include the same ...

The answer was an independently designed new inline-six, with a 3.0-liter displacement. One of the first models to use the ...

thanks to its twin-turbocharged 3.0-liter inline-six, producing up to 503 horsepower in the Competition variant. With this generation, BMW has integrated cutting-edge technology, from all-wheel ...

First released in 1968, BMW’s M30 inline-6 was so well designed that the manufacturer used the engine for almost three decades. The M30 proved to be a durable and reliable engine, capable of ...

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BMW’s classic car ... the Euro-spec E36 M3’s 3.2-liter inline-six made 321 horsepower and the E39 M5’s 4.9-liter V8 made 369 lb-ft. So even though this muscle car Z3 had a V12 and weighed ...

Those numbers sure won't blow many modern minds, but where the BMW X5 E53's 3.0-liter M54 straight-6 DOHC engine truly shines ... mph run in 7.1 seconds, per a Car and Driver test.