E89 · Z4 sDrive28i

What the E89 Chassis Is

The BMW E89 is the second-generation Z4, produced from 2009 through 2016 and built at BMW's Regensburg plant. It marked a major departure from its E85/E86 predecessor by adopting a two-piece retractable hardtop that transformed the car from an open roadster into a snug coupe at the touch of a button. Longer, wider, and more grand-touring in character than the earlier Z4, the E89 blended genuine sports-car handling with everyday usability. If you're researching a specific car, run the chassis number through our VIN decoder to confirm the exact model and build details.

The Models in This Generation

BMW offered four E89 Z4 variants in the United States over its production run:

• Z4 sDrive28i — turbocharged four-cylinder entry model
• Z4 sDrive30i — naturally aspirated inline-six
• Z4 sDrive35i — twin-turbo inline-six with strong midrange
• Z4 sDrive35is — the range-topping performance variant

Every U.S. E89 was rear-wheel drive, denoted by the "sDrive" prefix, and offered as a two-seat convertible with the folding hardtop.

Engines & Drivetrains Offered

The E89 spanned BMW's transition from naturally aspirated engines to modern turbocharging. Early sDrive30i cars used the naturally aspirated N52 inline-six, while the potent sDrive35i and sDrive35is relied on the twin-turbo N54 for effortless thrust. Later sDrive28i models adopted the turbocharged four-cylinder N20, delivering competitive performance with better economy. Transmission choices included a six-speed manual and, on turbocharged cars, BMW's quick-shifting dual-clutch automatic. These powertrains are shared across contemporaries like the E60 5 Series and E63 6 Series—part of the shared engineering you can explore in our BMW DNA guide.

What It's Like to Own & Buy

The E89 is a rewarding used purchase, combining timeless styling, a solid folding roof, and strong performance in the six-cylinder cars. The sDrive35is remains the enthusiast's pick for its added output and sharper setup. As with any modern turbocharged BMW, prioritize a documented service history, and inspect the hardtop mechanism for smooth, complete operation. Well-maintained examples reward owners with a genuine sports-car experience and everyday comfort—one of BMW's most balanced roadsters.

Notable Strengths

• Retractable hardtop delivers coupe refinement and convertible freedom
• Turbocharged inline-six variants offer effortless, tunable power
• Rear-wheel-drive balance and precise steering
• Grand-touring comfort without sacrificing sporting intent