When tuners usually change the stock ECU map a car comes with as stock, they change the parameters at which the engine works, forcing it to produce more power and torque. However, doing something like ...

If there's anyone in America that knows anything about tuning performance cars, it's Dinan. They won so many titles it would take absolutely too long to list here and he don't want to bore you with ...

V8 power no longer belongs only to six-figure exotics or brand-new muscle cars. On the used market, a handful of quietly ...

OUR TAKE: Power delivery is strong and smooth, and the suspension is tuned for a sporty, yet comfortable ride. Commuting isn’t dull, the 550i capable of cutting up traffic like a much smaller sports ...

Alina has been enthusiastic about vehicles her entire life, and even from an early age found herself itching to get behind the wheel. Through high school and college, she could be found reading ...

I own a bmw 2011 550i Xdrive M sport package with M Steering wheel, M sport suspension ETc and honestly one of the best car I have ever own and still own. Reliability has been decent on my end but no ...

After logging a near-record 8,475 miles over the previous three months, time behind the wheel of the long- term BMW 550i xDrive fell way off. Our ongoing battle with BMW's infernal spec run-flat tire ...

Alina has been enthusiastic about vehicles her entire life, and even from an early age found herself itching to get behind the wheel. Through high school and college, she could be found reading ...

Currently, a 2014 BMW 550i sedan starts at $64,825; while a 2015 BMW 650i Gran Coupe starts at $90,125 (both prices include $925 destination). For that $25,300 premium, the 650i Gran Coupe includes ...