The Z4 sDrive35i ($51,650) uses a 300-hp 3.0-liter inline six, though it is a different engine than the 30i and employs twin turbochargers; a six-speed manual gearbox is standard and a seven-speed dual-clutch automated manual optional ($1,525). Other mechanical upgrades include larger brakes and wider rear tires and wheels. Cabin upgrades include standard leather upholstery, brushed aluminum trim or ash wood, and automatic dual-zone climate control. Kansas leather upholstery on the dash, visors, door sills ($1,350) is optional, along with a 19-inch wheel upgrade to the Sport package ($1,200).

Options for both Z4 models include navigation ($2,100); Comfort Access ($500); Park Distance Control ($750); HD radio; satellite radio w/1-year sub ($595); smartphone integration ($150); anti-theft alarm ($400); metallic paint ($550). The Cold Weather package ($1,000) includes heated steering wheel and seats, storage pack, through-loading system, headlight washers. The Premium package includes auto-dimming mirrors, gate opener, power seats with lumbar and driver memory, ambient light package, BMW assist, leather on 30i. Premium Sound ($2,000) adds six-disc DVD changer, hi-fi sound system, iPod/USB adapter. Sport adds 18-inch alloy wheels and run-flat performance tires, Adaptive M suspension, sport seats; 19-inch wheels are also available. Exclusive Ivory white Nappay leather is available, along with anthracite wood trim.

Standard safety features include frontal airbags, head/thorax side airbags in the seats, active knee protection, roll hoops, and electronic stability, traction and braking controls, tire pressure monitors. The only option that might be considered safety related is the Park Distance Control.